Cancer is a disease that causes abnormal cells to reproduce and spread to other parts of the body, which can result in tumors or damage to the immune system that may become fatal. Healthy cells follow ...

More than a billion years ago a hungry cell devoured a tiny blue-green alga. But instead of the former simply digesting the latter, the duo struck a remarkable evolutionary deal. Now scientists are ...

Various cells in the stomach secrete digestive enzymes and hydrochloric acid. These substances break down food so the body can absorb nutrients. The stomach is a muscular organ in the upper abdomen ...

While humans can regularly replace certain cells, like those in our blood and gut, we cannot naturally regrow most other parts of the body. For example, when the tiny sensory hair cells in our inner ...

Scientists found a previously unrecognized organelle in fruit flies, a thoroughly studied organism. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...

The way Dr. Paul Niehans, a stony-faced, ramrod-straight Swiss physician told it, his theory and practice of “cellular therapy” sounded plausible enough. Thirty years ago he had begun transplanting ...

Researchers have identified a rare type of brain cell whose overactivity may contribute to schizophrenia-like symptoms, such as cognitive deficits and disrupted sleep.

Scientists have created a mouse embryo that’s part human – 4% to be exact. The hybrid is what scientists call a human-animal chimera, a single organism that’s made up of two different sets of cells – ...