Women who engaged in 30 minutes of jogging per day and men who engaged in 40 minutes, for five days a week in consistently high levels of physical activity have significantly longer telomeres.
Telomeres are the protein endcaps of our chromosomes which are extremely correlated with age. The older we get, the shorter our telomeres. The shortest telomeres came from sedentary people — they had 140 base pairs of DNA less at the end of their telomeres than highly active folks, the researchers said.
Although the exact mechanism for how exercise preserves telomeres is unknown, Tucker noted that it may be tied to inflammation and oxidative stress. “We know that regular physical activity helps to reduce mortality and prolong life, and now we know part of that advantage may be due to the preservation of telomeres,
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