You have abs under there, and they work tirelessly for you. Pay them back with this advice.
Internal and External Obliques: Do the twist! These middle abdominal muscles allow you to rotate your trunk.
Rectus Abdominis: The famous "six-pack" muscle forms the top layer of the abs and plays a role in flexing forward at the waist.
Transverse Abdominis: Located deep in your core, this muscle stabilizes the spine.
4: The number of main muscles that make up the abdominals.
36: The minimum number of hours you should take off between abs workouts to allow the muscles to recover.
66: The percentage of women whose abs separate (known as diastasis recti) in the third trimester of pregnancy, per one study. Don't worry, it can be fixed!