It will get there by flowing in the bloodstream. Other fluids move throughout the body as well: in the lungs, the urinary tract, the digestive tract. Yet biologists don't really study the impact ...

Discover why hydration is crucial for your brain, heart, and overall health. Learn how drinking water boosts energy, mood, ...

Space changes the human body in many ways. From bone loss to bloated faces, here's how microgravity and radiation affect the ...

A biochemist breaks down challenges that astronauts Suni Williams and Butch Wilmore will face after their long duration in ...

Spending months in space can have serious effects on the human body. NASA astronauts Butch Wilmore and Suni Williams recently ...

In the weightless environment of space, bones and muscles weaken due to reduced gravity, which can lead to bone density loss ...

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Bone and muscle deterioration, radiation exposure, vision impairment -- these are just a few of the challenges space ...

Hypertension (high blood pressure) increases the risk of cardiovascular disease and mortality. Learn how damage from ...