Every second, millions of blood cells are produced in the human body, and about 90% of the cells replaced daily are blood ...

In an interview with " Fox & Friends" last week, HHS Secretary Robert F. Kennedy Jr. lauded cell phone restrictions in schools, pointing to links between social media use and anxiety and depression.

Type 1 diabetes is an autoimmune disease in which the immune system mistakenly attacks the cells that produce insulin—a critical hormone that regulates blood sugar in the body. Scientists at Scripps ...

Mary Brunkow, Fred Ramsdell, and Shimon Sakaguchi were awarded the 2025 Nobel Prize in Physiology or Medicine on Monday for their collective work in the discovery of specialized immune cells that roam ...

Scientists have made a landmark breakthrough that enables the creation of viable human egg cells from a skin cell, new research claims. The study, published in Nature Communications, detailed how US ...

Cancer cells can brainwash their neighbors. Like the CIA deploying secret agents to turn an enemy, tumors use a similar strategy to manipulate nearby cells. The tumors’ agents are mitochondria, the ...

Traveling to space is brutal on the body. Spaceflight can cause astronauts’ bones to lose density, their brain and eye nerves to swell, and their genes to change expression. Research suggests spending ...

Spaceflight makes certain human stem cells age faster, a new study has found, furthering scientists’ understanding of the potential effects of space exploration on the human body. Stem cells are found ...

Advanced light microscopy techniques are giving scientists a new understanding of human biology and what goes wrong in diseases Katarina Zimmer, Knowable Magazine Innovative techniques are helping ...

Burmese pythons and other carnivorous snakes are well-known for swallowing their prey whole. But what comes out the other end doesn’t resemble what went in. There’s not a bone to be seen in their poop ...

E. histolytica kills at least 50,000 people every year. Microbiologists have a battle plan. By Andrew Paul Published May 12, 2025 3:34 PM EDT Get the Popular Science daily newsletter💡 Breakthroughs, ...

Medulloblastomas, brain tumors in children, are thought to develop between the first trimester of pregnancy and the end of the first year of life. Researchers have now analyzed the genetic changes of ...