When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Getty Images Hands up if you spend most of the day sitting – I’ll raise both! Modern life ...

The back consists of large, complex muscles that support your trunk and spine. There are many types of back muscles, and they are all essential, helping you walk, bend, twist, and hold your body ...

A broad, well-defined back is a cornerstone of any well-rounded physique. But that’s not the only reason to pump up your posterior—it’s also a critical way of improving posture, reducing back pain, ...

This cross section through the flight muscles of a dancer damselfly shows in blue the muscle fibers that the fly uses to flap its wings. You can also see the nerve that stimulates these muscles in red ...

Hands up if you spend most of the day sitting – I’ll raise both! Modern life is relentlessly (and often unconsciously) front-loaded: laptops, steering wheels, and phones all seem to pull our shoulders ...