The alternator is a device that keeps your car’s electrical system running once the engine is on. It’s essentially a small generator that converts mechanical energy into electricity, bolted to the ...

Here’s what to know about the latest COVID strain — and how to tell if your at-home test is still good to use.

Earlier this year the Food and Drug Administration approved a new human papillomavirus test that allows for self-collection of samples in a health care setting, thereby removing what many say is an ...

STATEN ISLAND, N.Y. — As the weather cools and the United States faces a possible winter surge of coronavirus (COVID-19) cases, it’s a good time to check your stock of at-home tests. The first thing ...

Dr. Blumenthal: I'm Roger Blumenthal, professor of medicine at Johns Hopkins, and with me is my friend and colleague, Dr. Jennifer Mieres, an assistant professor at New York University School of ...