People wore the backpack while lifting dumbbells and then enjoyed a nice massageHuang et al., 2026, Cell Reports Physical Science A backpack can detect when muscles become fatigued and automatically massage the affected areas. This seems to help muscles recover better than heat therapy or pre-programmed massages, like those delivered by chairs and cushions. About 1 in 6 adults in the UK have some form of back pain. This can occur when back muscles become fatigued through exertion or prolonged or repetitive activity. Persistent fatigue can impair local blood flow and tissue recovery, potentially contributing to chronic pain. Read more From back pain to cancer, how the interstitium could trans...