The shoulder muscles are responsible for maintaining the widest range of motion of any joint in your body. This flexibility is also what makes the shoulder prone to instability and injury.

This article details everything you need to know about nose anatomy — the nasal structures ... the nasal root — connects your nose to your forehead. The bottom of the nose is also called ...

In this article, we discuss the anatomy and function of the rotator cuff and common injuries that affect this muscle group. The rotator cuff is a group of four muscles and tendons that attach the ...

‘The deep wrinkles in the forehead are the result of many years’ activity from the forehead muscle, which is called the frontalis. As the muscle contracts, it lifts the eyebrows, making the ...

Neuromodulator injections temporarily relax the frontalis muscle that creates forehead wrinkles. The treatment takes minutes to perform, with results developing over 3-7 days and typically lasting ...

On the other hand, extrinsic factors come from outside influences, which can include repeated movements of the forehead muscles, like raising your eyebrows, squinting, or frowning. Idriss explains ...

There are many factors that can cause forehead wrinkles, ranging from use of various muscles in your face to a loss in skin elasticity that comes with age. "The major cause for forehead wrinkles ...