Thirty marks the spot. Starting at this age, we begin to lose approximately three to eight percent of muscle mass per decade. With it, we also lose strength and mobility. Left unaddressed, this loss ...

It’s a bizarre sight: With a short burst of light, a sponge-shaped robot scoots across a tiled surface. Flipped on its back, it repeatedly twitches as if doing sit-ups. By tinkering with the light’s ...