Your eyes—retinal blood vessels and retinal imaging—may help predict heart disease, according to a new study. Here, doctors ...

All bodily systems are connected and help inform one another; some link in ways that may surprise you. A new study highlights ...

Discover the giraffe’s extreme circulatory system and how it manages dangerous blood pressure with nature’s unique ...

Water and nutrients are important to keep living things alive and healthy. Animals, including humans, get these from what they eat and drink, but how do the water and nutrients get transported around ...