The endocrine system is the name for the glands that produce hormones in a person’s body. These glands include the thyroid gland, pituitary gland, and adrenal gland. The endocrine system produces ...

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 ...

Your sympathetic nervous system is one of the branches of your autonomic nervous system. It controls functions under unconscious control related to “fight or flight.” Your nervous system plays a ...

When a person is at rest, meditating or reading a book, the parasympathetic nervous system is at work. Also known as the "rest and digest" system, the parasympathetic nervous system is responsible for ...

The vagus nerve sprawls from the brain through the body, innervating our organs and managing life support and emotion. Sally Caulwell for Quanta Magazine The original version of this story appeared in ...

We breathe to sustain life but, aside from its most essential role, breathing supports the health of your body and mind in many other ways. More specifically, your breathing rate and patterns help ...

Three immunologists have won the 2025 Nobel Prize in Physiology or Medicine for uncovering how the immune system prevents itself from attacking the body.

Scientists at the Centro Nacional de Investigaciones Cardiovasculares (CNIC) have discovered that neutrophils, the most abundant cells of the innate immune system, have many more functions in the body ...

Although most known for its effect on the lungs, cystic fibrosis is a far-reaching condition that affects most of the body’s systems. Cystic fibrosis is a chronic condition that’s primarily associated ...

The 2025 Nobel Prize in physiology or medicine has been awarded to a trio of scientists for unraveling how the immune system protects us from thousands of different microbes trying to invade our ...