Get to know the functions of your heart, blood vessels, and blood itself and how they work together to maintain your health.

Every day, your heart pumps about 10 pints of blood 60,000 miles around your body through your circulatory system. That system is made up of blood vessels, the tubes that carry blood throughout your ...

Human bodies are designed to move in order to circulate blood and nutrients to every cell. Staying active and on the move is crucial to our health for a lot of reasons. But it's especially important ...

Your heart pumps blood from your head to your toes, provides cells with fresh oxygen, and removes waste products. Located in ...

The calf muscles play a vital role in blood circulation. They are often called the body's second heart. Strong calf muscles improve venous return and prevent blood pooling. Sedentary lifestyles weaken ...

You might not think about it as much as you do eating healthy, exercising, and getting enough sleep, but maintaining good circulation is one of the most important building blocks to keeping your ...

Inflammation and low oxygen levels may cause cognitive problems. LUNGS Early evidence of oxygen limitations. CIRCULATORY SYSTEM Vascular damage and blood clots may trigger fatigue. IMMUNE SYSTEM ...

Thermoregulation is the biological mechanism responsible for maintaining a steady internal body temperature. The three mechanisms of thermoregulation are efferent responses, afferent sensing, and ...