Free radicals have a terrible reputation. These reactive and unstable molecules have been associated with cancer, aging, and degenerative diseases such as Alzheimer's. Yet the body constantly produces ...

You may have heard that antioxidants are an important part of your diet – but what are they and what do they do? Generally, antioxidants balance out something called oxidants or free radicals, which ...

Free radicals are highly reactive and unstable molecules that are made by the body naturally as a byproduct of normal metabolism. Free radicals can also be made by the body after exposure to toxins in ...

Our mitochondria are the main locus of free radical production and are therefore the primary sites of oxidative damage. As mitochondria become more damaged, they produce less energy and generate more ...

Free radicals generated at a specific site in non-neuronal brain cells called astrocytes may promote dementia, according to a Weill Cornell Medicine study. These findings, published in Nature ...

For the first time, researchers have been able to show how a cell closes the door to free radicals – small oxygen molecules that are sometimes needed, but that can also damage our cells. The study is ...

After a brain hemorrhage, neural support cells called astrocytes enhance healing by transferring their mitochondria to damaged neurons. The healthy mitochondria stimulate the production of a free ...

A high-tech cell therapy used to treat cancer has been repurposed as a treatment for lupus, an autoimmune condition that can cause joint, kidney and heart damage. CAR T-cell therapy has put all five ...