If you need a Covid-19 test, you have options. But what type of test is best? And what are the differences? Terms like molecular, antigen, rapid, PCR, RNA can be head-spinning when you often just want ...

Facing long lines and shortages of home test kits during the latest surge, people are searching for answers about Covid tests. By Tara Parker-Pope Dani Blum and Nicole Stock Testing is essential to ...

The best type of COVID-19 test to take depends on why you’re getting tested. Some tests are best for diagnosing current COVID-19 infections while others can identify past infections. Others are better ...

Research continues to show the influence your gastrointestinal (GI) system (or your “gut”) has on your overall health. While certain symptoms, such as indigestion, mood changes, and skin diseases, ...

Grail's Galleri test screens for more than 50 different types of cancer from a single blood draw. (Getty Images) If you could take a simple blood test that could detect multiple types of cancer while ...