How Exercising Into Old Age Can Keep Your Immune System Young

Source: Time

By ALEXANDRA SIFFERLIN

March 9, 2018
TIME Health
For more, visit TIME Health.

Exercise, even in old age, is known to have a wide range of health benefits, from preventing disability to slowing memory decline. But a new study reveals that it can also protect the immune system.

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In the study, published in the journal Aging Cell, researchers looked at 125 very active adult cyclists who were between ages 55 and 79. The researchers analyzed their blood for markers of T-cells, which are known to help the immune system fight infections.

The study authors then compared the cyclists to people in their same age group who did not exercise regularly, as well as younger adults between ages 20 and 36. Not only was T-cell activity higher in the active adults than the inactive men and women, but the cyclists were also producing the same level of T-cell activity as young adults in their 20s.

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