AI Summary

A study in mice found that injecting muscle cells beneath the skin creates a patch that contracts continuously, mimicking the effects of regular exercise. The research, led by Ng Shyh‑Chang at the Beijing Institute for Stem Cell and Regenerative Medicine, originally aimed to increase muscle mass but instead produced a self‑contracting tissue that delivered exercise‑like benefits around the clock. The authors suggest the approach could aid individuals unable to engage in physical activity, such as hospital patients, though it is not intended to replace actual exercise.

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