Medically reviewed by Alicen Nelson MD, MPH The navel, also known as the belly button or umbilicus, is a small, round, or ...

Broadly speaking, functional strength training enhances fitness ability by targeting the core, joints, and multiple muscle ...

Most physical yoga sessions involve a mat and sometimes props like blocks, bolsters or straps for extra support. But when ...

“If you tend to have more slow-twitch fibers, your abs won’t develop appearance-wise as much as the abs of people who may have more fast-twitch fibers in their abdominal muscle wall.