Scientists have a new understanding of the protective effects of caffeine on the cardiovascular system. While its stimulant effects have long been characterized, a team of Canadian researchers have ...

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 ...

Senior male patient with ECG sensor on his chest in clinic. Elderly male with face mask getting his cardiac stress test in cardiology clinic. COVID-19 induces a range of negative cardiac effects, such ...