Cardiovascular fitness is the foundation of endurance, stamina, and heart health. When your cardiovascular system is in top shape, everything feels more manageable, whether you're chasing your kids ...

The human body has evolved to shield its vital organs, from the brain's hard skull and meninges to the ribs and sternum protecting the heart and lungs ... causes long nerves in the brain to ...

Medically reviewed by Lauren Schlanger, MD The recurrent laryngeal nerve (RLN) anatomy is designed to supply function to most muscles of the larynx (voice box). It branches from the vagus nerve ...

The right-hand side of the heart is responsible for pumping deoxygenated blood to the lungs. The left-hand side pumps oxygenated blood around the body. Each side of the heart consists of an atrium ...