This series of Special Features takes an in-depth look at the science behind some of the most debated nutrition-related topics, weighing in on the facts and debunking the myths. Share on Pinterest ...

The integumentary system is the physical system that forms the barrier between the external environment and the internal systems of the body. In humans, this system consists of skin, hair, nails, and ...

Hour after hour, year after year, Santiago Ramón y Cajal sat alone in his home laboratory, head bowed and back hunched, his black eyes staring down the barrel of a microscope, the sole object ...

Your autonomic nervous system (ANS) is the part of your central nervous system (CNS) that controls unconscious activities like breathing and digestion. This system is always working, whether or not ...