Articles by

Tina Hesman Saey

Scientists made human egg cells from skin cells

Creating human eggs from adult cells just got one step closer to reality. A technique used in...

More young U.S. adults report trouble with memory and focus

More U.S. adults than ever report having serious trouble concentrating, remembering or making decisions. In 2023, more...

What makes chocolate taste so good? It’s the microbes

Like wine and cheese, chocolate has terroir, a sense of the place it was grown. Each bonbon...

Could babies get bird flu through breast milk? Maybe, a study hints

Human breast tissue may be capable of hosting — and passing on — bird flu. Human mammary...

This snail may hold a secret to human eye regeneration

A snail may hold the key to restoring vision for people with some eye diseases. Golden apple...

Some probiotics could feed, rather than fend off, infections

Probiotics aren’t universally gut-friendly, a study in mice suggests. At least one type of usually beneficial gut...

You may already have some protection from bird flu, but don’t count on it

Some people may already have a tiny bit of protection against H5N1 bird flu. Several recent studies...

U.S. FDA may nix black box warning on some menopause estrogen treatments

If a panel convened by the U.S. Food and Drug Administration has its way, a health risk...