This article was updated at 7:28 p.m. Warner Bros. will bend the rules of time and space for Wednesday’s worldwide release of its mind-bending tentpole “The Matrix: Revolutions.” The trilogy-capping ...

As we age, the muscles we rely on for daily activities tend to become less reliable. With enough decline, even normal movements such as getting out of bed become risky. Low muscle mass in the ...

A car accident leaves an aging patient with severe muscle injuries that won't heal. Treatment with muscle stem cells from a donor might restore damaged tissue, but doctors are unable to deliver them ...

Muscles of the elderly and of patients with Duchene muscular dystrophy have trouble regenerating. A new nanohydrogel with muscle stem cells has boosted muscle growth in mouse models while protecting ...