Thoracic outlet syndrome (TOS) is a group of conditions that occur when you have compressed nerves or blood vessels in the thoracic outlet. The thoracic outlet is the triangular space between your ...

Let’s be honest—upper back pain is something most of us experience, especially for those of us who sit at a desk all day. Sitting for long periods of time can cause tightness and soreness in the ...

What Is the Body’s Core? Your body’s core is the term used for the group of muscles within your midsection that stabilize your spine and pelvis. Several muscles and groups of muscles make up the core ...

The back extension is a versatile exercise that can be performed virtually anywhere. It can be used as part of a training program to build strength or a rehabilitation program for injury recovery.

Tight hip flexors, especially a deep muscle called the psoas, can silently stress your spine. Here's why this muscle deserves more attention—and how to strengthen it. Lower back pain is often blamed ...