A nurse prepares a flu shot for a six month old patient in Pittsburgh, Feb. 28, 2020. Thimerosal, an obscure mercury-based preservative,...

Movement can be an effective treatment for back pain. (Theodore Tae/The New York Times) By Christine Yu When your lower back hurts, your...

An autistic boy with his mother at home in Texas, Aug. 5, 2023. There is no blood test or brain scan to determine who has autism, and...

Products at Prospect Heights grocery store in Brooklyn, April 11, 2013. The Food and Drug Administration on Thursday updated the...

Kyle Lampe, 37, at home in Norfolk, Mass., Dec. 10, 2024. When Lampe looks back at his school days, he realizes how much his undiagnosed...

An estimated 1,200 people have died of mpox, which kills about 2.5% of those it infects in Congo. (ALIMA) By Stephanie Nolen On Sept....

Trying to stay healthy into old age is a better goal than attempting to live as long as possible. (Francesco Ciccolella/The New York...

By Hannah Singleton Sleep and exercise work together like gears in a machine: When one turns smoothly, the other follows suit. Quality...