Why do men die younger than women?

Read time

A middle-aged asian couple stares out at the sea from the beach

A middle-aged asian couple stares out at the sea from the beach

It’s true; they do, on average.

We’re not talking about a particular male—who may well outlive a particular female—rather a statistically average male, compared with a statistically average female.

An American Psychological Association article on the topic quotes an old joke about a man who goes to the doctor complaining of seeing spots. The doctor’s receptionist asks, “Have you ever seen a doctor?” He says, “No. Just the spots.”

The joke reflects an underlying social truth: that men are less likely to look after their health and see their doctor.

If you’ve ever visited a nursing home, assisted-living facility, or other seniors’ community, you may have noticed there are often more women than men.

Australian Bureau of Statistics (ABS) data for 2017-2019 showed that in Australia, life expectancy at birth as 80.9 years for males and 85.0 years for females—a gap of 4.1 years.

Globally, women more frequently report and seek care for stress, depression, or anxiety. Women experience lower earnings and face many other social inequalities but outlive men in all countries—without exception—even in countries with extreme inequalities.

So, why do men die younger than women?

Risk taking

Boys and men tend to underestimate risk, suppress emotions and be more impulsive and sensation-seeking. They take more frequent and more dangerous risks.

Hormonal differences may make men more prone to taking risks. Also, the frontal lobes in the brains of boys and young men develop more slowly. This part of the brain is believed to be involved in judgement and evaluating consequences, and this delayed development may contribute to boys and young men engaging in more risky behaviours and activities.

Risky jobs

In many higher-risk tasks—such as military combat, construction, oil rigs, saturation diving, search and rescue, policework, and firefighting—men outnumber women by a considerable margin. Although since WWII, the number of Australian men dying in combat, or in first-responder work is relatively small, the associated stresses and unhealthy lifestyles can impact lifespan directly and indirectly due to stress and associated unhealthy lifestyles.

Dangerous sports and activities

More men than women participate in higher-risk sports and activities, especially contact sports such as rugby and boxing, or driving cars or motorcycles at high speeds, or racing. Adverse incidents may lead to long-term disability and premature death. Males made up 73% of all road fatalities in Australia from 2013-2018.

Cardiovascular disease

Cardiovascular disease is the leading cause of death in men in Australia. A 2020 Australian Institute of Health and Welfare report on cardiovascular disease found that the prevalence of cardiovascular disease—heart, stroke, and vascular disease—was higher in men (6.5%) than women (4.8%).

A study of nearly 34,000 people in Norway who had a heart attack between 1979 and 2012 found that throughout life, men are about twice as likely as women to have a heart attack. Even after adjusting for traditional risk factors for heart disease, such as high cholesterol, high blood pressure, diabetes, body mass index and physical activity, the risk persisted. Experts still aren’t sure why.

Biology is a factor. The female sex hormone estrogen is protective of cardiovascular disease and is partly responsible for the lower incidence of such diseases in women up until menopause.

The male sex hormone testosterone is higher in men and is associated with a higher risk of cardiovascular disease.

Immune systems

Female bodies are known to produce stronger immune responses and larger amounts of antibodies compared with male bodies. This may help them ward off diseases and live longer.

A middle-aged man and woman looking at themselves in a mirror

Medical advice and attention

Studies have shown that in general women are more health conscious and have higher awareness of physical and mental symptoms than men. They also are more likely to communicate their health problems or needs effectively.

Men are generally less likely to see their doctor when they have symptoms, complete a course of treatment, do routine health checks, and skip recommended screening tests.

Failing to seek treatment or to complete treatment for illness, injury, or chronic conditions may make health outcomes worse for men.

Substance abuse

In 2019, among Queenslanders aged 14 years and older, males were 1.7 times more likely to have used any illicit drug in the past 12 months compared to females.

Among Queensland adults aged 18 years and older, 50% of men compared to 26% of women consumed alcohol above the limits recommended in the 2020 Australian guidelines to reduce health risks from alcohol.

According to The Health of Queenslanders report of the Chief Health Officer Queensland 2020, of the 410,000 Queensland adults who smoked daily in 2020, 12% were male and 8.9% were female.A group of four men laugh at something on a mobile phone

Social connections

People with fewer or weaker social connections tend to have higher death rates, for reasons that are unclear, and this tends to be men more often than women.


Men have a higher rate of suicide than women. In Queensland, men have a three times higher rate of suicide than women. Men had an age-standardised rate of 23.9 per 100,000, whereas for women it was 7 per 100,000 (leading causes of death in Queensland 2014 – 2018).


Studies suggest men are less likely to adhere to COVID-19 precautions. They also suggest that COVID-19 mortality is higher in men.


There is a rule of thumb in biology that larger-sized animals within a species tend on average to have shorter lives. Male humans are on average larger than females, so it’s feasible that this may have some effect.

(Interestingly, between species, the rule seems to be generally reversed, and larger species such as whales and elephants tend on average to live longer than smaller species such as rabbits or shrews).


Other possible causes have been put forward, including differences at chromosomal or genetic level. The Y chromosome tends to develop more mutations than the X chromosome, and abnormalities in X chromosomes in males are not masked by a second ‘good’ version, as they may be in females. Developmental disorders are more common in boys.

Boys and men in every age group die more often, particularly in their fifties and sixties, when the gap widens even more before narrowing again.

Men are also more likely to be homeless, or in custody.

The good news

Australia’s life expectancy is very good—we ranked eight highest in the OECD for males and seventh in the OECD for females. Our combined male/female ranking is seventh highest in the world, after Japan, Switzerland, Spain, Italy, Iceland, and Israel.

In Australia, a boy born in 2017–2019 can expect to live to the age of 80.9 years compared to 51.1 years in 1891-1900.

According to the ABS, some reasons for improvements in life expectancy for men and women include:

  • improved health services
  • safer working environments
  • medical and technological advances.

In Australia, the life-expectancy gap between men and women has been narrowing.

Just over 50 years ago (1965-1967), life expectancy was 67.6 years for males and 74.2 years for females, a gap of 6.6 years.

The gap has now reduced to 4.1 years—80.9 years for males and 85.0 years for females (2017-2019).An older man and woman doing push ups together

What can we do to improve life expectancy?

Live as healthily as we possibly can by:

  • not smoking
  • limiting alcohol consumption
  • eating a healthy balanced diet
  • drinking plenty of water
  • getting enough sleep
  • maintaining a healthy body weight
  • getting regular exercise
  • reducing stress
  • reducing exposure to toxins and radiation
  • seeking medical advice when you have physical or mental symptoms
  • having regular medical check-ups, and completing recommended screening tests, such as breast and bowel cancer screening.

Five ways to live longer as a Queensland bloke

See our blog on the topic.