Human immunodeficiency virus (HIV) is a germ that causes a lifelong infection that slowly weakens the immune system. Though the infection is lifelong, medicines can keep the virus in check and ...

Coronary arteries supply blood to the heart muscle. There are two main coronary arteries: the right and the left.

Body composition measures your lean muscle mass and body fat percentage to determine your overall health and fitness. Learn how it differs from BMI and weight measurements and how to improve body ...

Learn more about what calisthenics workouts are, why the protocol is beneficial, and how to incorporate it into your fitness routine.

The Human BodyEach organ in your body’s 11 organ systems work so you can perform activities like breathing, digestion, and movement.

Anatomy is the study of the structure of living things. It is key to medicine and other areas of health. Here, learn about the fields of anatomy and more.

Esoteric Anatomy offers a spiritual approach to massage, bodywork, and somatic psychology, demystifying an ancient transpersonal model for understanding ...

Some of us are curvier, some of us have narrower hips or broader shoulders — whatever your body shape, it’s important to know that there is no “average” or “typical” body.