The short answer: Japan didn't discover a "longevity food." It shut down several routes to early death
In 2025, life expectancy at birth in Japan was 81.35 years for men and 87.33 years for women. In the Ministry of Health, Labour and Welfare's international comparison, Japanese women rank first and men rank seventh. Life expectancy is the average number of years a newborn would live if that year's age-specific death rates stayed the same in the future. It is not the average age at death of everyone alive today.
Source: Ministry of Health, Labour and Welfare, "Abridged Life Tables for 2025 (Reiwa 7): Overview"
The main routes behind Japan's long lives can be sorted like this.
Sanitation, nutrition, vaccination, medical care
→ fewer infectious-disease deaths and fewer infant deaths
Less salt, blood pressure checks, blood pressure drugs
→ fewer brain hemorrhages, ischemic strokes, heart failure cases and kidney failure cases
Low obesity, fish, plant foods
→ fewer cases of ischemic heart disease, diabetes and some cancers
Health checkups, cancer screening, better treatment
→ diseases are found early and become less deadly
Social security and universal health insurance
→ easier access to care regardless of income
Japan hasn't always been the longest-lived country in the world. In the early 1960s, its life expectancy was on the short side among the G7 countries. Behind that were cerebrovascular disease, especially brain hemorrhage, and a high rate of stomach cancer.
After that, Japan cut stroke and stomach cancer sharply. Meanwhile, ischemic heart disease, breast cancer, prostate cancer and some others stayed lower than in Western countries. This combination, bringing down the causes of death that used to be high and keeping low the ones that were already low, is what made Japan a long-lived country.
Source: Why has Japan become the world's most long-lived country: insights from a food and nutrition perspective
Source: Why is Japanese life expectancy so high?
Eating less salt and controlling blood pressure sharply reduced strokes
Traditional Japanese food included many items that rely on salt for preservation: miso (fermented soybean paste), pickles, dried fish, salted fish and soy sauce.
Not everyone reacts to salt in the same way, but in general, eating a lot of salt makes the body hold on to sodium and water. Blood volume goes up, and so does the pressure on the artery walls.
If high blood pressure goes on for years, the following chains of events can develop.
High blood pressure
→ damage and stiffening of artery walls
→ small blood vessels in the brain burst
→ brain hemorrhage
High blood pressure
→ hardening of arteries and blood clots
→ blood vessels in the brain get blocked
→ ischemic stroke (cerebral infarction)
High blood pressure
→ the heart pumps against high pressure
→ enlarged heart, heart failure
High blood pressure
→ damage to the tiny blood vessels in the kidneys
→ declining kidney function
In Japan, refrigerators became common and people relied less on salt-preserved food. Salt-reduction campaigns, community checkups, workplace checkups, home blood pressure monitors and blood pressure drugs all spread.
The JPHC Study (a large Japanese cohort study of public health centers' areas) estimated that if everyone from those with high blood pressure to those with high-normal blood pressure were removed, 64% of strokes in men and 50% in women could be prevented. This is strong evidence that blood pressure was central to Japan's long life expectancy.
Source: Population-attributable fractions of risk factors for stroke incidence in Japan
That said, eating vegetables does not cancel out salt. The potassium in vegetables and fruit helps the body get rid of sodium and pushes blood pressure down, but it doesn't completely undo too much salt.
Fish mainly works on the clots, blood fats and inflammation behind heart attacks
Fish, especially oily fish like mackerel and sardines, contain n-3 polyunsaturated fatty acids such as EPA and DHA.
The possible effects are these.
- Lower triglycerides (a type of blood fat)
- Keep platelets from clumping too much
- Support the function of the inner lining of blood vessels
- Tend to dampen inflammation
- In some cases, lower blood pressure slightly
- Replace red meat and processed meat
These effects mostly work toward lowering the risk of ischemic heart disease, where the coronary arteries narrow or get blocked by clots, and of heart attack.
In the JPHC Study, which followed about 40,000 Japanese people, the group that ate the most fish had about 40% fewer cases of ischemic heart disease and about 60% fewer definite heart attacks than the group that ate the least. However, this is an observational study, so it may not show the pure causal effect of fish alone. Some influence from income, the rest of the diet, exercise and so on may remain.
Source: National Cancer Center Japan, "Fish, n-3 polyunsaturated fatty acid intake and ischemic heart disease"
A meta-analysis that pulled together studies on the Japanese diet and cardiovascular deaths also found that people who followed a Japanese-style diet more closely tended to have lower deaths from cardiovascular disease, stroke and heart disease.
Source: Japanese-Style Diet and Cardiovascular Disease Mortality: A Systematic Review and Meta-Analysis
Fish is one piece of the longevity puzzle. But if you eat more fish while also taking in lots of salted fish and soy sauce, you give up part of the blood pressure benefit. You have to think about cooking methods and salt too.
Vegetables and fruit weaken the paths of blood pressure, LDL, blood sugar and obesity all at once
Vegetables and fruit contain potassium, dietary fiber, various vitamins, polyphenols and more.
The core of it isn't some all-purpose antioxidant power. It's a set of rather plain pathways like these.
Potassium
→ helps the body excrete sodium in urine
→ pushes blood pressure down
Soluble fiber
→ helps the body excrete bile acids
→ pushes LDL cholesterol down
Fiber and low energy density
→ easier to feel full
→ keeps weight gain in check
Fiber
→ slows down sugar absorption
→ prevents sharp spikes in blood sugar after meals
As a result, they weaken the pathways to stroke, heart attack, type 2 diabetes and obesity-related diseases.
In the JPHC Study, the group with the highest fruit intake had lower deaths from all causes and from cardiovascular disease, and the group with the highest vegetable intake also tended to have lower all-cause deaths. But it can't be said that vegetables and fruit greatly prevent all cancers.
Source: National Cancer Center Japan, "Vegetable and fruit intake and all-cause and cause-specific mortality"
Soy isn't a "food that extends life in one shot." It's a part that tilts the whole diet in your favor
Soy contains plant protein, unsaturated fats, dietary fiber, isoflavones and more.
What could help with longevity is a combination of effects like these.
- Replaces some meat and processed meat
- Gives you protein while keeping saturated fat low
- Brings in fermented food, such as natto (fermented soybeans)
- Adds fiber
- Provides protein that helps maintain muscle in old age
In the JPHC Study, total soy food intake had no strong, consistent link with the risk of death. However, people who ate a lot of fermented soy foods such as natto and miso tended to have a lower risk of death.
Source: National Cancer Center Japan, "Intake of soy foods and fermented soy foods and risk of death"
Then again, miso contains salt. So the conclusion is not "the more miso soup you drink, the longer you'll live."
The value of soy lies less in the drug-like effect of any single ingredient than in being able to have a variety of protein sources instead of leaning on meat alone.
Moderate amounts of meat, eggs and dairy also contributed to longer lives in postwar Japan
Depending on region and income, the old Japanese diet could easily fall short on animal protein, fat and calcium.
After the war, as people ate moderately more meat, eggs and milk, the following improvements may have happened.
- Less protein shortage
- Better upkeep of artery walls and muscle
- Less undernutrition and frailty in old age
- Better bone mass and calcium intake
- A nutritional state better able to withstand infections
In other words, Japan's longevity didn't come from preserving the old austere diet as it was.
The strengths of Japanese food: fish, soy, vegetables
+
A moderate increase in meat, eggs and dairy
+
Less salt
This balance is what mattered.
Low obesity kept ischemic heart disease and diabetes low
Compared with the United States and other countries, Japan has a lower share of severe obesity.
When body fat, especially visceral fat (fat around the organs), builds up, insulin resistance, high blood sugar, high blood pressure, abnormal blood fats and chronic inflammation tend to pile up together.
Visceral fat
→ insulin resistance
→ type 2 diabetes
Visceral fat
→ high blood pressure, abnormal blood fats, inflammation
→ hardening of arteries
→ heart attack, ischemic stroke
In Japan, death rates from ischemic heart disease have historically been lower than in the West. Not only fish and plant foods but also differences in calorie intake, portion sizes, walking and body build play a part in that low rate.
But being too thin is also bad for longevity. In older people, it leads to undernutrition, muscle loss, falls and a weaker ability to recover from pneumonia. What's needed isn't "the thinner the better" but avoiding both obesity and undernutrition.
Universal health insurance and checkups catch disease before it's too late
Diet alone can't explain Japan's longevity.
Japan achieved universal health insurance in 1961, which made it easier for people to reach medical care regardless of their employer or income.
On top of that, community checkups, workplace checkups, ningen dock (a comprehensive private health screening), school checkups and maternal and child health programs make it easier to find the following problems before symptoms appear.
- High blood pressure
- Diabetes
- Abnormal blood fats
- Abnormal liver function
- Some cancers
- Infections
- Risks related to pregnancy and childbirth
High blood pressure damages blood vessels with no symptoms. A system that measures your blood pressure at checkups and keeps you on medication prevents strokes during the years when you still think you're fine.
Sanitation, vaccination, antibiotics and maternal and child health care, which reduced tuberculosis, pneumonia and infant infections, also raised life expectancy a great deal.
Longevity isn't built by care for the elderly alone. When early deaths among infants, young people and the middle-aged decline, life expectancy rises a lot.
Stomach cancer fell thanks to salted food, H. pylori, refrigeration and screening
Japan used to have many deaths from stomach cancer.
The background included Helicobacter pylori infection (a stomach bacterium), salty food, salt-preserved food and smoking. As refrigerators spread, salt-preserving declined. As sanitation improved, H. pylori infection rates fell among younger generations. Endoscopy (camera examination of the stomach), screening and treatment also advanced.
As a result, deaths from stomach cancer dropped sharply.
Here too, it wasn't a specific health food that created longevity.
Preservation technology
+ sanitation
+ infection control
+ less salt
+ testing
+ treatment
It was this combination of social technologies.
The bathing culture is a supporting factor, but we can't call it the main cause
As for Japan's bathing habit, there is an observational study showing that people who soaked in a bathtub almost every day had fewer cases of cardiovascular disease.
Heat may widen peripheral blood vessels, improve blood flow, make it easier to fall asleep and lower stress.
On the other hand, people who can bathe every day are also likely to have stable housing, income, health and daily rhythms. In an observational study, you can't fully separate bathing itself from living conditions.
So the following is about as far as it's reasonable to go.
Soaking in a tub may help with sleep, relaxation and circulation.
But it hasn't been established as a main reason Japan became a long-lived country.
Also, water that's too hot, long baths, bathing after drinking alcohol, and the temperature gap between a cold changing room and the bathroom in winter can raise the risk of fainting, falls, drowning and cardiovascular events.
Women outlive men because biology and lifestyle stack up
Women's longer lives are not unique to Japan. In almost every modern population, women live longer than men.
Even in groups living under very harsh social conditions, such as severe famine, epidemics or slavery, women show a survival advantage, and the gap shows up from infancy. For this reason, a biological basis is thought to exist.
Source: Women live longer than men even during severe famines and epidemics
Candidate biological factors include the following.
- Genetic redundancy from having two X chromosomes
- Differences in immune, lipid and blood vessel function due to sex hormones
- Men possibly being more vulnerable to some infections and cardiovascular diseases
- Women's greater resilience in survival, seen from around birth
However, no single mechanism has been established well enough to explain the gap between men and women.
Source: Sex Differences in Lifespan
Lifestyle differences are layered on top of that.
One study found that in Japan in 1980, the current smoking rate among people aged 40 and over was 62.9% for men and 8.8% for women. Life expectancy at age 40 was 42.1 years for male never-smokers versus 38.6 years for male current smokers. For women, it was 45.6 years for never-smokers versus 43.4 years for current smokers.
Source: Life expectancy among Japanese of different smoking status in Japan: NIPPON DATA80
Older Japanese men were exposed to very high smoking rates when they were young. Women, on the other hand, had low smoking rates. Decades later, that difference shows up in the gap between men's and women's lifespans through lung cancer, COPD (chronic lung disease), heart attack, stroke and more.
Men's heavier drinking, accidents, suicide, risky behavior and delays in seeking care also widen the gap.
So the natural way to think about Japanese women's longevity is as a sum like this.
Low obesity, diet and medical care across Japan
+ the biological survival advantage common to women
+ historically low smoking rates
+ less heavy drinking and risky behavior than men
Neither "women live longer, so they face no disadvantages in society" nor "if there are disadvantages, lifespan must be shorter" holds up. Lifespan, income, promotion, housework burden, happiness and healthy life expectancy are separate measures.
A long life expectancy doesn't mean the same number of healthy years
In 2022, healthy life expectancy was 72.57 years for men and 75.45 years for women. The gap from life expectancy is about 9 years for men and about 12 years for women.
Source: Ministry of Health, Labour and Welfare, "Life expectancy and healthy life expectancy"
Women live longer than men, but they also tend to spend more years with limits on daily activities.
So the next challenge for longevity policy is not simply to delay death, but to delay the following.
- Frailty
- Dementia
- Fractures
- Needing long-term care
- Heart failure
- Kidney failure
- Declines in vision and hearing
What did Japan's long life expectancy actually remove?
| Factor | What it mainly moves | Diseases and deaths that tend to fall |
|---|---|---|
| Less salt, blood pressure treatment | Blood pressure | Brain hemorrhage, ischemic stroke, heart failure, kidney failure |
| Fish, EPA, DHA | Triglycerides, clots, inflammation | Heart attack, ischemic heart disease |
| Vegetables, fruit | Potassium, fiber, weight | Stroke, heart disease, diabetes |
| Soy | Protein source, unsaturated fat, swapping out other foods | Cardiovascular risk, some undernutrition |
| Moderate meat, eggs, dairy | Protein, calcium | Undernutrition, frailty, vulnerability to infection |
| Low obesity | Blood sugar, blood pressure, blood fats | Diabetes, heart attack, ischemic stroke |
| Refrigeration, sanitation, fewer H. pylori infections | Infection, salt-preserved food | Stomach cancer, infections |
| Universal health insurance, checkups | Early detection and continued treatment | Stroke, cancer, infections and more |
| Low smoking | Cancer-causing exposure, lung function, hardening of arteries | Lung cancer, COPD, heart disease, stroke |
| Social ties | Seeing a doctor, taking medication, isolation, emergency response | Deaths from external causes, suicide, delayed treatment and more |
In short, Japanese people live long not because of a one-shot secret like fish or hot baths.
Fewer people had strokes from high blood pressure.
Obesity and heart attacks stayed low.
Infections and stomach cancer declined.
Checkups and medical care reduced cases caught too late.
This accumulation is what longevity is.
Why Do Single People, Especially Single Men, Tend to Die Younger? Drinking, Smoking, Support and Daily Routines
The short answer: it's less that marriage extends life, and more that marriage tends to supply "brakes" on daily life that lower the risk of death
In large Japanese cohort studies, never-married men had a higher risk of death from all causes, cardiovascular disease, respiratory disease and external causes than married men.
The JACC Study followed about 94,000 Japanese people aged 40 to 79 for about 10 years. Compared with married men, the relative risks for never-married men were as follows.
- Death from all causes: 1.91 times
- Cardiovascular disease death: 3.05 times
- Respiratory disease death: 2.43 times
- Death from external causes: 2.18 times
Never-married women also had 1.46 times the risk of death from all causes, but the gap was not as large as for men.
Source: Marital status and mortality among Japanese men and women
A meta-analysis pooling studies from around the world, covering about 7.89 million people, also linked being unmarried to death from all causes, cancer and cardiovascular disease in both men and women, and the links with all-cause and cardiovascular death were stronger in men.
Source: Sex differences in the association between marital status and mortality
Still, you shouldn't jump from this to "get married and you'll live longer" or "single people are unhealthy."
Marital status bundles together several factors.
Having a spouse
+ household income
+ stable housing
+ shared meals
+ encouragement to see a doctor
+ someone to notice an emergency
+ less isolation
+ attention to smoking and drinking
+ baseline health and socioeconomic status
Part of it is caused by marriage, and part is a selection effect: people who are healthy and have a steady income are more likely to get married in the first place.
The observation that "single people are always drinking and smoking" has a core of truth as an average
It is wrong to look at an individual and assume "he's single, so he drinks and smokes."
But as group averages, studies show that never-married, divorced and widowed men are more likely to have clusters of things like smoking, heavy drinking, little interest in seeing a doctor, no job, low income and psychological distress.
In the JACC Study mentioned earlier, never-married men also showed these tendencies compared with married men.
- More current smokers
- Less interest in health checkups
- More without a job
- Fewer years of education
- More who reported a lack of hope or a sense of fulfillment
Among divorced and widowed men, average alcohol intake and strong stress were also higher.
So a pattern you may see in everyday life,
Living alone, nobody stops him, so he drinks every night.
He keeps smoking as he always has.
His meals lean toward drinking snacks and eating out.
Even when a checkup shows a problem, he ignores it.
isn't entirely made up, going by the research.
Marriage isn't a cure-all, but small interventions tend to happen at home.
- Aren't you drinking too much?
- You should cut back on cigarettes.
- You should go to the hospital.
- Did you take your medicine?
- You look pale.
- Haven't you eaten today?
Each one is small. But over decades, they add up to a difference.
Smoking raises the risk of death throughout the body, not just from lung cancer
Smoking makes most people think of lung cancer first, but in fact it affects the whole body through the following pathways.
Carcinogens
→ DNA damage
→ lung cancer, throat cancer, esophageal cancer, bladder cancer and others
Chronic inflammation and destruction of the air sacs in the lungs
→ COPD
→ respiratory failure, vulnerability to pneumonia
Damage to the lining of blood vessels, platelet activation
→ hardening of arteries and clots
→ heart attack, ischemic stroke
Carbon monoxide
→ reduced ability to carry oxygen
→ extra strain on the heart
In the JPHC Study, it was estimated that about 22% of deaths among the men studied and about 5% among the women could have been prevented if there had been no smokers.
Source: National Cancer Center Japan, "Smoking and total mortality"
Also, people who quit smoking have a lower risk of death than people who keep smoking. Even after smoking for many years, quitting is not pointless.
Source: National Cancer Center Japan, "Changes in smoking habits and all-cause and lung cancer mortality"
When thinking about the lifespan gap for single men, differences in smoking rates are one of the central factors.
Alcohol isn't a simple protective factor that's "healthy in moderation"
Depending on the amount and the way you drink, alcohol raises the following risks.
- High blood pressure
- Atrial fibrillation (irregular heartbeat)
- Brain hemorrhage
- Cirrhosis of the liver
- Cancers of the esophagus, mouth and throat, liver, colon and others
- Accidents, falls, drowning
- Suicide
- Poorer sleep quality
- Addiction
The JPHC Study, which followed Japanese men, reported higher risks of total death, cancer, all strokes and suicide among men who drank more than 1 go (a traditional Japanese measure of sake, about 180 ml) per day on average.
Source: National Cancer Center Japan, "Drinking patterns and premature death"
Even with the same weekly intake, heavy drinkers who drank every day with no alcohol-free days had a higher risk of death. Among men who consumed 300 to 449 grams of ethanol per week, the group drinking 5 or more days a week had 1.5 times the risk of death from all causes compared with the group drinking 1 to 2 days a week. At 450 grams or more per week, it was 1.8 times.
Source: National Cancer Center Japan, "Drinking patterns and all-cause mortality"
So "single and drinking every night" isn't just a matter of not being married.
Daily drinking
→ higher blood pressure, worse sleep, dependence
→ cancer, stroke, accidents, suicide
→ shorter life
It has concrete pathways like this one.
For single men, meals tend to become "getting it over with" rather than "nutrition"
Living single is not a problem in itself.
The problem is when nobody manages the meals, nobody eats with you, nobody points out how you look the next day, and work fatigue is piled on top of drinking and smoking.
Eating habits tend to fall apart in these ways.
- Skipping breakfast
- Eating a lot late at night
- Using alcohol as a meal
- Less vegetables, fruit and fish
- Leaning on noodles, rice bowls, fried food, processed meat and drinking snacks
- More salt
- Less variety of foods
In the Japanese JPHC Study, women who ate a wider variety of foods had lower deaths from all causes and cardiovascular disease. In men, no clear link appeared, and the researchers suggested that the effects of men's smoking and drinking may have outweighed the benefits of the diet.
Source: National Cancer Center Japan, "Dietary variety and mortality"
This is telling.
Even if you eat a fairly good diet, heavy daily smoking and drinking can make the benefits of that diet hard to see.
A spouse may not be a "health manager," but works as a sensor that detects something wrong
When someone lives alone, if they pass out, fall, can't move because of a stroke or have an acute heart attack, they may not be found for a while.
If someone lives with them, that person can notice signs like these.
- Slurred speech
- Arm or leg on one side won't move
- Clutching the chest
- Trouble breathing
- Looking dazed
- Hasn't eaten for days
- Hasn't been able to take their medicine
- Depression getting worse
Part of the lower death rate among married people comes from this difference in being noticed and connected to help.
It's not just about the strength of romantic feeling. It's the effect of a structure in which someone is observing your physical condition day to day.
Isolation worsens not only stress but also the pathways of seeing a doctor, taking medication and behavior
A meta-analysis of 148 studies covering about 309,000 people on social relationships and death found that people with adequate social relationships had a 50% higher likelihood of survival than those with poor ones. That said, the differences between studies were large, and this is not a causal coefficient that says "make friends and you'll live 50% longer."
Source: Social Relationships and Mortality Risk: A Meta-analytic Review
Social connections can affect lifespan through several pathways.
Having someone to talk to
→ less stress and hopelessness
Having plans to meet people
→ daily rhythm and going outside
Having someone who knows how you're doing
→ seeing a doctor and emergency response
Having someone to eat with
→ regular meals
Belonging somewhere
→ a role, a purpose, mental stimulation
"Single" and "isolated" are not the same. A single person with friends, family, a community, work or hobby groups is less isolated. A married person with a poor marriage and no friends can still be isolated.
Unemployed people who are supported and content are a different group from those with financial worries
Studies showing higher death rates among the unemployed can't be applied as they are to financially secure full-time homemakers.
"Not working" covers several different situations.
- Can't work because of illness
- Lost a job and lost income
- Wants to work but there are no jobs
- Left work to care for family
- Lives comfortably on a spouse's income and chose to be a full-time homemaker
- Has assets and doesn't need to work
Situations 1 to 4 tend to be disadvantaged in health, income and isolation. Situations 5 and 6, on the other hand, may let people avoid workplace stress, commuting and long hours, and spend time on sleep, exercise, meals and hospital visits.
In a cross-sectional study of highly educated Japanese women, full-time homemakers had fewer health worries, fewer inadequate breakfasts and fewer sleep problems than employed women.
Source: The possible absence of a healthy-worker effect among educated Japanese women
However, the US ARIC study, which followed women until death, found that employed women had a lower risk of death than full-time homemakers. The adjusted hazard ratio was 0.65.
Source: Women's employment status and mortality: the ARIC study
These results don't contradict each other.
The health effect of being a full-time homemaker changes with conditions like these.
Is household income sufficient?
Is it a situation the person wanted?
Are relationships at home good?
Aren't housework, childcare and caregiving too heavy?
Does the person have social connections?
Is physical activity maintained?
Is the daily rhythm intact?
So the most accurate way to put it is this.
People don't live long because they are supported by someone else.
A state with no financial worries, where the person is content, avoids overwork, isn't isolated and can keep their life in order, can be good for health.
Social roles can be a burden, but some studies find having several is better than having none
The JACC Study looked at three roles: spouse, parent and worker. Compared with people who had all three, people with none had 1.66 times the risk of death from all causes for men and 1.78 times for women.
Source: Multiple roles and all-cause mortality: the Japan Collaborative Cohort Study
This doesn't mean that everyone should have a job, a marriage and children.
Roles tend to provide things like these.
- Meeting people
- Being needed
- A fixed daily schedule
- Using your body and mind
- Support coming in when you're in trouble
On the other hand, poor-quality roles damage health.
- Marriages with violence or control
- Overwork
- Endless caregiving
- One-sided burden of housework and childcare
- Low-paid work with no discretion
What matters isn't only the number of roles but their quality, the person's own choice, and the balance between burden and support.
Even without marriage, you can recreate much of the protection
What single people need for a longer life is not the form of marriage but the following functions.
Stop drinking and smoking through automation
- Set things up so you don't buy cigarettes
- Use a quit-smoking clinic or medication
- Don't keep alcohol at home
- Decide on days when you don't drink
- Keep a record of how much you drink
- Don't treat a nightcap as a sleep remedy
Make meals a system, not a matter of willpower
- Keep frozen vegetables, fruit, natto, eggs and canned fish always in stock
- Restock food once a week
- Don't make drinking snacks your dinner
- Don't drink up the salty noodle broth
- Decide on protein and vegetables first
Don't ignore checkup results
- Put a deadline on any abnormal blood pressure, blood sugar, LDL or liver function result
- Book the recheck on the spot
- Keep a record of your home blood pressure
- Make dental, eye and cancer screenings regular too
Reduce the problem of being alone in an emergency
- Have several emergency contacts
- Set up regular check-ins with friends or family
- Use a smartwatch or a monitoring service
- Don't tough it out alone when you feel unwell
- Know the symptoms of stroke and heart attack
Keep friends and roles
- Put regular meetups on the calendar first
- Join an exercise, hobby or learning group
- Have a role outside of work
- Don't rely on just one person to talk to
In short, the weakness of being single is not "having no spouse" itself.
Nobody stops the drinking and smoking, and they go on.
Meals fall apart.
Problems get ignored.
A sudden illness goes unnoticed.
Isolation deepens.
Leaving this pathway as it is is what's dangerous.
Do Farmers Really Live Longer? Moderate Activity and a Stable Life Base vs. the Risks of Accidents and Pesticides
The short answer: some groups of farmers look long-lived, but you can't say "farming extends your life"
In the US Agricultural Health Study, the all-cause death rate of farmers and their spouses was lower than that of the general population.
The study followed about 51,500 farmers licensed to apply pesticides and about 31,900 of their spouses, among others, for an average of 16 years. The standardized mortality ratios were 0.61 to 0.69. In a simple comparison, that means 31 to 39% fewer deaths than in the general population.
Source: Overall and cause-specific mortality in a cohort of farmers and their spouses
An earlier follow-up also found fewer deaths than in the general population from all causes, heart disease, diabetes, COPD, all cancers combined, lung cancer and more.
Source: Mortality in the Agricultural Health Study, 1993–2007
But the direct effect of farming alone doesn't explain it.
The healthier you are, the longer you can keep farming
Farming takes a certain amount of physical strength: standing, walking, crouching, lifting, carrying and operating machines.
People with illness or declining physical function tend to quit farming or cut back their workload.
As a result, many of the people still working as farmers at the time of a survey were healthy to begin with.
This is called the healthy worker effect.
It's not only that
farming made them healthy,
but also that
being healthy let them keep farming
The reverse direction is mixed in.
The Agricultural Health Study researchers themselves list the healthy worker effect, low smoking rates and physical activity as reasons for the low death rates.
Source: Mortality among participants in the Agricultural Health Study
Daily low-to-moderate exercise helps the heart, blood vessels and metabolism
Farm work has the feature that you move your body every day without going to a gym.
- Walking
- Standing
- Crouching
- Handling soil and tools
- Doing different work with each season
- Moving around outdoors
Moderate physical activity acts on the following.
Using the muscles
→ better insulin sensitivity
→ lower blood sugar
Walking and endurance activity
→ keeps the heart and lungs fit
→ pushes blood pressure and triglycerides down
Muscle strength and balance
→ prevents falls
→ keeps independence in old age
However, physical activity on the job is not the same as exercise you do at your own pace.
Long hours with no breaks, heavy loads, scorching sun, noise, vibration and awkward postures can make the strain outweigh the benefits of the activity.
So what works in your favor for health is
moderate farming where you can adjust the amount of work yourself
and it needs to be kept separate from
hired agricultural labor, where people are pushed for long hours in the heat.
Low smoking and drinking in farm households may reduce lung cancer, COPD and heart disease
In the US farming cohorts, farmers and their spouses had fewer deaths related to smoking and alcohol.
For example, among spouses, COPD deaths were about 0.27 times and cirrhosis deaths about 0.40 times those of the general population.
Source: Mortality in the Agricultural Health Study, 1993–2007
This is not only the effect of farm work.
If farming communities already have a lifestyle culture with little smoking and heavy drinking, that difference shows up in lung cancer, COPD, liver disease and cardiovascular disease.
Conversely, in farming villages and generations with a lot of smoking and drinking, you wouldn't get the same result.
Farming leaves a role and a daily rhythm even after retirement age
Office workers can lose all of the following at once when they retire.
- A wake-up time
- A commute
- Conversations with people
- Physical activity
- Responsibility
- A sense of belonging
- A daily purpose
In farming, even in old age, it may be possible to keep a role while reducing the workload.
- Only watering
- Helping with the harvest
- Looking after the tools
- Passing knowledge on to younger family members
- Keeping up a small field
This "role that never drops to zero" tends to maintain physical activity, mental stimulation, social ties and daily rhythm.
The fact that death rates were low not only for farmers but also for their spouses suggests that the structure of the whole household's life, and not only the exercise effect of farm work, may be involved.
Land, a home of your own, food and family can form a stable life base
Depending on region and era, farm households have assets like these.
- A home of their own
- Land
- Food production
- Working together with family
- Local networks
- A role that remains in old age
Income isn't necessarily high. But when worries about housing and food are small and there are contacts with family and neighbors, a life is less likely to collapse because of unemployment.
This has something in common with the state described in the previous article: being supported, having a secure life and not being isolated.
What affects lifespan may be less the job title "farmer" than a structure like
Moving moderately
+ stable meals
+ having a home
+ contact with people
+ a role that remains even in old age
Being in nature doesn't automatically make you healthy
In farming, you get sunlight, feel the seasons and move your body outdoors.
This may be good for sleep, mood and circadian rhythm (the body clock).
But outdoor work also carries these risks.
- Heatstroke
- Skin cancer
- Dehydration
- Hypothermia
- Insect bites
- Infections
- Dust, mold and substances from animals
- Pesticide exposure
You can't treat something as safe just because it's "natural."
Farm machinery accidents are a serious risk that can cancel out farmers' longevity advantage
In the Agricultural Health Study, farmers' all-cause death was low, but machinery-related deaths were about 4.15 times those of the general population, off-road vehicle accidents about 2.80 times, and collisions with objects about 2.12 times.
Source: Mortality in the Agricultural Health Study, 1993–2007
In other words, even if farmers are less likely to die of chronic disease, they face a higher danger of dying from farm equipment, tractors, falls and being caught in machinery.
Older farmers may keep doing the same work from long experience even as their reaction speed, eyesight, hearing and strength decline. When larger machines and working alone are added on top, it becomes dangerous.
Pesticides don't raise every kind of death, but specific diseases need monitoring
In farmer cohorts, death from all cancers combined was lower than in the general population. But when the comparison method was changed, some diseases showed higher death rates: prostate cancer, blood cancers, non-Hodgkin lymphoma, Parkinson's disease and kidney disease.
This doesn't mean pesticides affect every farmer in the same way.
Types of pesticides, years of use, protective gear, spraying methods and exposure levels all differ, so each disease has to be evaluated separately.
"Farmers as a whole are long-lived" and "farming exposures raise certain diseases" can both be true.
Conditions that make farmers more likely to live long
Among farmers, the conditions thought to be especially favorable are these.
- You can adjust your working hours yourself
- Heavy work can be mechanized or shared
- You can avoid the scorching sun
- You can take breaks and drink water
- Little smoking and heavy drinking
- You use protective gear
- You use the safety devices on farm equipment
- You reduce working alone
- You scale work back as you get older
- You have contact with family and the community
- Your meals and housing are stable
Conversely, longevity is hard to claim under these conditions.
- Large debts and swings in income
- Carrying everything alone
- Never able to rest
- No heatstroke prevention
- No pesticide protection
- Continuing dangerous work in old age
- Not being found after an accident
- Heavy smoking and drinking
Farming is not a health regimen.
Moderate physical activity, discretion over your work, a role and a stable life base work toward a long life.
Accidents, pesticides, heat, heavy labor and isolation work toward a short one.
Which side wins is decided by the form farming takes.
