A frequent source of lower-back pain comes from two muscles you might not have heard of—and that makes sense since you rarely see them on those medical posters of human anatomy in doctor's offices.

Most runners are familiar with the big muscles involved in running, like quads, hamstrings, and glutes. But there are lesser-known, yet still important players that can influence run performance. One ...

If you practice yoga, run, hike, ski, cycle, surf, swim, or just want to feel more stable as you go about your everyday life, you need to be aware of an easily overlooked pair of muscles that plays a ...

Consumer Reports has no financial relationship with any advertisers on this site. Like other parts of your body, your muscles change over the years. “As you age, your muscle fibers become less dense, ...

Whether you've been diagnosed with arthritis or you're an athlete who frequently pushes your physical limits, muscle pain is just that — a pain. It can inhibit a person's ability to recover and relax, ...