The "peach" era is fading as gyms across America see a massive surge in upper-body training, driven by celebrity influence ...

Bulging biceps get their power from a mesh arrangement of cells rather than long ropes, detailed studies reveal. As muscles flex, tugging filaments fan out in a lattice, say the University of ...

Ryan Seacrest sent his fans into a tailspin when he shared his latest workout video on social media. The 50-year-old American Idol host looked ripped as he worked on his arms with a pair of dumbbells ...