For years, scientists have known that the heart has its own network of nerves, the intrinsic cardiac nervous system (ICNS), ...

Every heartbeat is choreographed not just by the brain but also by a mysterious nervous system embedded in the heart itself.

Coronary arteries are a vital part of the human heart, providing it with oxygen-rich blood so that it can work. By comparing the hearts of mammals, birds, reptiles, fish and frogs, a ...

'The key with HIIT is to exercise at a high enough intensity to influence the push of your heart, and the stretch of your blood vessels. True high-intensity intervals are three minutes or less, and ...