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How likely are you to live to 90? Depends on your gender and body size



The study found that women who lived to 90 were, on average, taller and had put on less weight since the age of 20 compared to women who were shorter and heavier. No such association was seen for men. However, men have seen more benefit from physical activity than women

While the study is observative and can not establish a cause, the findings "provide interesting suggestions that men's and women's health might respond differently to BMI, height and exercise," said epidemiologist David Carslake, and senior research associate at the University of Bristol in the UK, who was not involved in the study. BMI, which is a body mass index, is a measurement of body fat based on a calculation of height and weight.

In 1

986, researchers surveyed over 7,000 Norwegian men and women between age 55 and 69 about their height, current weight, and weight at age 20. Both genders also told researchers about their current physical activity, including dog walking, gardening, home improvements, walking or biking to work and sports. The men and women were then sorted into daily activity quotas: less than 30 minutes, 30 to 60 minutes, and 90 minutes or more.

The groups were monitored until they died or reached the age of 90; of the 7807 participants, 433 men and 994 women lived to that age. Issues that could affect longevity, such as current or past smoking and the level of alcohol use, were also taken into account

Men and women in the study fared very differently when it came to the impact of body size and exercise. The dietary habits of the Mediterranean diet have been reduced to the age of 20 ” data-src-mini=”//cdn.cnn.com/cnnnext/dam/assets/170717104105-mediterranean-diet-stock-small-169.jpg” data-src-xsmall=”//cdn.cnn.com/cnnnext/dam/assets/170717104105-mediterranean-diet-stock-medium-plus-169.jpg” data-src-small=”http://cdn.cnn.com/cnnnext/dam/assets/170717104105-mediterranean-diet-stock-large-169.jpg” data-src-medium=”//cdn.cnn.com/cnnnext/dam/assets/170717104105-mediterranean-diet-stock-exlarge-169.jpg” data-src-large=”//cdn.cnn.com/cnnnext/dam/assets/170717104105-mediterranean-diet-stock-super-169.jpg” data-src-full16x9=”//cdn.cnn.com/cnnnext/dam/assets/170717104105-mediterranean-diet-stock-full-169.jpg” data-src-mini1x1=”//cdn.cnn.com/cnnnext/dam/assets/170717104105-mediterranean-diet-stock-small-11.jpg” data-demand-load=”not-loaded” data-eq-pts=”mini: 0, xsmall: 221, small: 308, medium: 461, large: 781″ src=”data:image/gif;base64,R0lGODlhEAAJAJEAAAAAAP///////wAAACH5BAEAAAIALAAAAAAQAAkAAAIKlI+py+0Po5yUFQA7″/>

Women who weighed less at age 20 and put on less weight as they aged were more likely to live longer heavier women. Height and a major factor: the study found women who were taller than 5 feet 9 inches were 31% more likely to live in their 90s than women who were less than 5 feet 3 inches.

No height or weight seemed to factor into whether the men reached their 90s, but activity level did. Men who spent 90 minutes a day or more were active were 39% more likely to live to 90 than men who were physically active for less than 30 minutes. In addition, for every 30 minutes a day, men were active, they were 5% more likely to reach that age

However, women who were physically active for more than 60 minutes a day were only 21% more likely to live to 90 than those who did 30 minutes or less. And unlike men, there was no bonus for increasing activity. In fact, the study found that the optimal level of activity for women was 60 minutes a day.

A slowing of life expectancy

Average life expectancy has been increasing for most of the world, but recent studies show and slowing down that trend in some developed nations. In the US, for example, life expectancy has been declining over the last few years. Drug overdoses and suicides are to blame for the most recent decline, according to the Centers for Disease Control and Prevention, but the major causes of death remain the same. Heart disease, cancer, and stroke, three of the top killers of Americans, are all affected by weight gain and lack of exercise.

"It is now very clear that overweight, obesity and sedentary lifestyles are harmful to health," Carslake said. "Studies like this one, which will be the same in different groups … will be increasingly important."


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