At-home microbiome tests are booming, but the science behind them is too shaky to deliver the health answers people think ...

Cologuard is a colon cancer screening test you can do at home. It’s a noninvasive, stool-based test that comes in a kit. You use the kit to collect a stool sample. Then you send the sample to a lab ...

Scientists are storing backup copies of the bacteria, viruses, archaea, protists, and fungi that keep our planet healthy ...