Cognitive functioning affects how people think and their ability to remember things. Impairment in this area of brain health may cause a decline in how someone responds to their environment mentally ...

The endocrine system is a network of glands and organs that uses chemical messengers called hormones to regulate metabolism, growth, reproduction, heart rate, blood pressure, and sleep-wake cycles.

The small intestine breaks down food and absorbs nutrients. It has tiny finger-like projections called villi that help absorb nutrients. The small intestine is essential for digestion, acting as a ...

The tongue helps with eating, tasting, swallowing, speaking, and breathing. A healthy tongue is pink, but changes in its appearance can signal health issues. Essential to the tongue’s anatomy are ...