Most people have 24 ribs, with 12 on each side of the body. No evidence indicates any difference between males and females. The ribs and rib cage are excellent examples of the human body’s ...

(NewsNation) — Butch Wilmore and Suni Williams, as well as two other NASA astronauts, have left the International Space Station after being stuck for nine months after a Boeing test flight. The return ...

However, the human body evolved to function in the gravity ... Microgravity also distorts the vestibular system, which is how you balance and sense which way is up. In space, there is no up ...

Spending months in microgravity is brutal on the body. Without the Earth’s gravitational pull, muscles shrink, bones weaken and bodily fluids shift. Astronauts lose muscle mass rapidly because ...

The researchers involved with the new study didn’t need to rely on elusive ancient remains to establish this revised chapter of human history. Instead, they tapped into modern human DNA from the 1000 ...

These dangers will only grow as humanity pushes deeper into the solar system, including to Mars ... and even gene therapies could enhance the body's defenses against space radiation.

Long-term effects on human ... system, making astronauts more susceptible to infections. Studies show that immune cells become less effective in microgravity, increasing the risk of illness.

Graphic News PARIS: Western Europe has a new oldest face: the facial bones of an adult nicknamed "Pink" discovered in Spain are from a potential new member of the human family who lived more than ...

Skin grafting is the transplantation of healthy skin from an animal, a human donor, or the patient’s own body to another part ... bedside skin bioprinting system that could let doctors print ...

The circulatory system consists of one heart, five liters of blood, and approximately 96,000 kilometers of blood vessels, responsible for transporting nutrients and waste throughout the body.

The immune system is the body’s tool for preventing or limiting infection. Its complex network of cells, organs, proteins, and tissues enables the immune system to defend the body from pathogens.