As we get older, we lose certain powerful muscle fibers faster than others, which can lead to weakness, falls, and trouble moving around — and this muscle decline can actually show how fast someone...

As we get older, our muscles' ability to generate power might slow down before we notice loss in strength or size — it could be the first sign our muscles are aging.

In older adults, how fast muscles can generate power matters more for staying steady on your feet and avoiding falls than how strong or big the muscles are — and it drops faster as you age.

As people get older, their muscles don't send signals as quickly when they try to move, which might be why they lose strength over time.

People with more fast-twitch muscles or who are older may bounce back slower after workouts and are more likely to get overtrained than younger people or those with more slow-twitch muscles.