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Swimmers live longer?

(Los Angeles Times) Is swimming the best exercise for lifelong health?...

[A new] study, which involved 40,547 men ages 20-90 who completed health exams between 1971 and 2003, found that "swimmers had lower mortality rates than those who were sedentary, walkers or runners."…

"My guess is that there were a lot of differences in the people who chose to be swimmers," says Steven Woloshin, a professor of medicine at the Dartmouth Institute who analyzes the interpretation of scientific studies…

The bottom line? The most important message is that physical activity is crucial for good health and longer life…

[P]eople who expend more than 1,000 calories a week in exercise cut their risk of dying — from all causes — by 20% to 30% within a given time period, and those who do more cut their risk even more. Physically active people have lower (healthier) fasting blood glucose levels, insulin resistance, and are better able to control their weight. They also have lower blood pressure, total cholesterol and "bad," low-density cholesterol.

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