Learn all about the human body's many systems and some of its individual organs, both vital and vestigial. When you purchase through links on our site, we may earn an affiliate commission. Here ...

Sometimes, the human body short-circuits—literally. A doctor breaks down the rare but terrifying “system override” glitch ...

Medically reviewed by Amy Kwan, PT Body type, or somatotype, describes a person's general body composition, proportion, and ...

Understanding your body’s filtration system. Before diving into detox strategies, it’s worth understanding the sophisticated cleansing system already operating inside you.

Everything your body does is connected in some way to your nervous system. It tells your heart to beat and your lungs to breathe. It controls the way you move, the words you say, and how you think ...

Researchers have developed a new “body clock" tool that measures biological age and may help forecast a person’s risk of disability or death. A longevity expert explains how it works.

Your immune system defends your body against harmful invaders like viruses and bacteria, using white blood cells, antibodies, and other defenses to maintain health.

The modern miracles of mind-body medicine reveal themselves as a message of safety in your nervous system. Pain's #1 objective is to protect you, but you don't have to let it control you.

There are four anatomical sling systems of the body, and we asked a strength and conditioning coach to explain each one, including how to exercise them and build a stronger body.

Some cancers may block channels in the body and stop particular body systems working so well. Some cancers may cause changes in the body by pressing on surrounding body tissues or organs. Some cancers ...

Lupus is a type of autoimmune disease. In an autoimmune disease, something goes wrong in the body’s immune system, causing it to harm healthy organs, tissues, and cells. “Auto” means “self” — so if ...