A circulatory system (sometimes cardiovascular system) is an organ system that moves substances to and from cells; it can also help stabilize body temperature and pH (part of homeostasis). There are ...

For once, the Greeks had no word for it: they neither understood nor named the body’s system of glands and connecting channels through which colorless fluids flow. The Romans did coin a name, but for ...

They’re the farthest points from your heart, often stuffed into shoes and easily forgotten. But your toes might be sending important messages about your cardiovascular health long before other ...

A process of surgically joining the circulatory systems of a young and old mouse slows the aging process at the cellular level and lengthens the lifespan of the older animal by up to 10%. A process of ...

Poor circulation in the legs affects millions of people worldwide, causing uncomfortable symptoms like cramping, swelling, numbness, and fatigue. While many factors contribute to circulation problems, ...

Scientists have long known about the anomalous "warming hole" in the North Atlantic Ocean, an area immune to warming of Earth's oceans. This cool zone in the North Atlantic Ocean appears to be ...