Sarcopenia, which is a progressive and extensive decline in muscle mass and strength, is common with aging and is estimated to affect up to 50% of people aged 80 and older. It can lead to disability ...

Muscle stem cells normally remain inactive until tissue is injured. They then become active, multiply, rebuild the damaged area, and produce replacement stem cells that return to a dormant state.

Engineers developed a method to grow artificial muscle tissue that twitches and flexes in multiple, coordinated directions. These tissues could be useful for building 'biohybrid' robots powered by ...