Your Blood Vessels Could Circle Earth Four Times Laid end to end, an adult's blood vessels could circle Earth's equator four ...

The heart is the body's hardest-working muscle. Whether you're awake or asleep, or exercising or resting, your heart is always at work. It pumps blood through arteries to deliver oxygen to organs and ...

Every second, trillions of tiny parcels travel through your bloodstream—carrying vital information between your body's cells.

Everywhere scientists look for microplastics, they've found them -- food, water, air and some parts of the human body. But examinations of our innermost organs that aren't directly exposed to the ...

Editor’s note: After surviving for two months with a transplanted pig heart, David Bennett died March 8. “We have gained invaluable insights learning that the genetically modified pig heart can ...

Wall St. Insights Many body parts can be transplanted or replaced with artificial equivalents, including corneas, livers, ...

Dr. Guido noted: “It is hard to draw real-world conclusions from a small laboratory study, but my main takeaway is that higher heat stress does seem to increase the resting metabolic rate by ...

Some good news, then, from researchers at Northwestern University, in the US. In 2025, they found a way to combine two ...

The human body is a wonderous thing, especially when you consider how intricate and efficient each bodily system is. For instance, an adult’s blood vessels could encircle the earth 2.5 times if ...

Once as improbable an idea as seeing pigs fly, the xenotransplantation of organs from animals to humans is becoming an increasingly viable option as the science of genetic editing improves and organ ...

The human body experiences various health problems because of inflammation, which can lead to joint pain, heart disease and ...