The benefits of exercising may partly be due to the way that being active enhances the immune system, scientists have suggested.
Researchers at Harvard Medical School found that exercise triggers the release of regulatory T cells, also known as Tregs, which enhance the muscles’ ability to use energy as fuel and improve endurance.
Most previous studies on human performance have focused on the role of hormones released during exercise and their effects on different organs, but this fresh research is one of the first to show how the immune system may play a role. Researchers at Harvard Medical School found that exercise triggers the release of regulatory T cells, also known as TregsAdvertisement Although the findings relate to observations in lab mice, researchers say the study is an important step towards understanding molecular changes that occur during exercise that provide health benefits.
The sets of both cells belonging to the mice that ran on treadmills showed classic signs of inflammation, and also had elevated levels of Tregs in their muscles – which lowered the exercise-induced inflammation. Neither change was observed in the sedentary mice.
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