Want to live 7 years longer? Avoid smoking, drinking and being overweight

Not only will you live longer, you will also spend those years in good health, say researchers.

Eat healthy to avoid weight gain.
Eat healthy to avoid weight gain.(Shutterstock)

A healthy lifestyle has many benefits - it helps you improve self-control and decrease risk of dementia, among other diseases. Now, reseachers say that people who do not smoke, consume alcohol moderately and maintain a healthy weight may live up to seven years longer than the general population, and spend most of these extra years in good health, a study has found. The study, published in the journal Health Affairs, showed that people who refrain from engaging in risky health behaviours have a longer life than the famously long-lived Japanese.

Researchers analysed data for more than 14,000 individuals and found that never-smokers who were not obese lived 4-5 years longer than the general population, and that these extra years were free of disability. Improvements in medical technology are often thought to be the gatekeeper to healthier, longer life. We showed that a healthy lifestyle, which costs nothing, is enough to enable individuals to enjoy a very long and healthy life,” said Mikko Myrskyla, Director of the Max Planck Institute for Demographic Research in Germany.

“A moderately healthy lifestyle is enough to get the benefits. Avoiding becoming obese, not smoking, and consuming alcohol moderately is not an unrealistic goal,” Myrskyla said. The study was the first to analyse the cumulative impact of several key health behaviours on disability-free and total life expectancy. Previous studies have looked at single health behaviours. Myrskyla and colleagues instead examined several behaviours simultaneously, which allowed them to determine how long and healthy the lives of people who had avoided most of the well- known individual behavioural risk factors were.


Moderate exercise will help you remain slim. (Shutterstock)

The researchers noted that each of the three unhealthy behaviours - obesity, smoking, and unhealthy consumption of alcohol - was linked to a reduction in life expectancy and to an earlier occurrence of disabilities. However, smoking was found to be associated with an early death but not with an increase in the number of years with disability, whereas obesity was shown to be associated with a long period of time with disability.

Excessive alcohol consumption was found to be associated with both decreased lifespan and a reduced number of healthy years. However, the absence of all of these risky healthy behaviours was found to be associated with the greatest number of healthy years. The most striking finding was the discovery of a large difference in average lifespan between the groups who were the most and the least at risk.

Men who were not overweight, had never smoked, and drank moderately were found to live an average of 11 years longer than men who were overweight, had smoked, and drank excessively. For women, the gap between these two groups was found to be even greater, at 12 years. “Our results show how important it is to focus on prevention. Those who avoid risky health behaviours are achieving very long and healthy lives,” said Myrskyla.

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