Several muscles could be called the "largest" in the body, depending on whether you're talking mass or surface area, but the body's smallest muscle has no competition. When you purchase through links ...

Repeated exercise, or wasting, can change the way key genes work.

Muscle-on-chip systems are three-dimensional human muscle cell bundles cultured on collagen scaffolds. A Stanford University research team sent some of these systems to the International Space Station ...

From Hyrox to Pilates, resistance bands and even yoga, experts explain what actually builds muscles – and why it gets harder with age.