Muscle is able to regenerate through a process that involves multiple steps and players, including the immune system. As our organism ages, the muscles lose the capacity to regenerate. Now, a new ...

Calcium is the essential "on switch" for muscle contractions and a critical partner in maintaining hydration during hard ...

The lower leg lies between the knee and ankle and works with the upper leg and foot to help perform key functions. In the leg are a number of bones, muscles, tendons, nerves and blood vessels. These ...

Evolution has left humans with many vestigial traits—remnants of once-useful biological features that serve little or no modern purpose. One such example is the muscles around our ears, which in many ...

Proteins are essential for body growth and muscle building. However, protein metabolism varies depending on the body’s internal biological clock. Therefore, it is important to know how distribution of ...

Our hearts beat around 100,000 times a day—and do so throughout our entire lives. They draw the energy for this from the ...

Exercises that strengthen respiratory muscles in the chest can help improve lung function in people with multiple sclerosis, ...

Each side of the neck contains two triangular sections created by the major deep muscles. The sternocleidomastoid muscle separates the sections, known as the anterior and posterior triangles. Located ...