This video explains how the heart, blood, and blood vessels work together to circulate oxygen, nutrients, and other vital ...

One can have a heart problem without knowing it. In some cases, the first sign is not chest pain, breathlessness or fatigue, ...

Heart attacks are often associated with older age, high cholesterol, diabetes, high blood pressure and smoking. But ...

A study led by UTSW sheds light on why children with certain complex congenital heart defects are at risk for long-term lung complications and points to a potential path for improving outcomes.

Every heartbeat is a conversation between chemistry and mechanics, and it happens in a moving stream of blood. When a drug enters the circulation, it reaches cardiac muscle cells within minutes, ...

Poor circulation is a widespread issue, particularly as people age, and it can cause symptoms such as cold hands and feet, tingling, numbness, swelling, or heaviness in the legs. If left unaddressed, ...

Pain, tingling and cramps in your legs and feet may be giving you a warning. They could be signs of poor blood circulation, which can lead to serious heart and health problems if left untreated, ...