This short film offers a look at respiration and a tour around the circulatory system and digestive system in the human body, through blood vessels and into mitochondria. There is a detailed ...

The average resting heart rate for a human is around 80 beats per minute ... This short film explains how the heart and circulatory system work, taking a close look at the four chambers, two ...

Two NASA astronauts are preparing for the first spacewalk of the year aboard the International Space Station (ISS). The ...

Microgravity also affects muscles and bones. Without the constant pull of gravity, muscles don’t have to work as hard, leading to muscle loss. Similarly, bones begin to lose density because they ...