Building muscle depends on several factors and isn't something that'll happen overnight after just one workout.

New research confirms that despite natural declines, it’s absolutely possible to regain strength, rebuild muscle and stay independent well into older adulthood.

Building muscle mass requires a consistent strength training routine, and it's a process that takes time. Social media makes it seem like quick results are the norm -- yes, some people gain muscle ...

The flow of water within a muscle fiber may dictate how quickly muscle can contract, according to a University of Michigan study. Nearly all animals use muscle to move, and it's been known for a long ...

Muscle loss can creep up faster than you think. Whether it’s due to injury, life changes or simply taking a break from working out, the body begins to change almost immediately when you stop using it.