Articles by

Tina Hesman Saey

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...

Protein signatures may one day tell brain diseases apart before symptoms

A large-scale study of proteins in blood and cerebrospinal fluid could pave the way for improved blood...

As bird flu evolves, keeping it out of farm flocks is getting harder

H5N1 bird flu isn’t going away. In fact, the virus continues to spin off new versions that...

Vaccine policy in the U.S. is entering uncharted territory

Vaccines are facing new challenges from an unexpected quarter: the people who set vaccine policy for the...

Many U.S. babies may lack gut bacteria that train their immune systems

About three quarters of babies born in the United States may not have enough friendly microbes in...

A genetic test may predict which weight loss drugs work best for patients

People trying to lose weight often count calories, carbs, steps and reps and watch the scales. Soon,...