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nicolesy/iStock (NEW YORK) — Sleeping too much or too little each night can harm adults’ brain performance, increase symptoms of

Wavebreakmedia/iStock (WASHINGTON) — The U.S. is poised to begin rolling out booster shots in a matter of weeks, with still

Prostock studio/iStock (NEW YORK) — Thousands of Americans were finally persuaded to get their first shot in the week following the

Alernon77/iStock (NEW YORK) — In yet another setback in the decadeslong scientific quest for an HIV vaccine, a Johnson & Johnson

AsiaVision/iStock (NEW YORK) — From popular sayings like mommy juice, wine down, rose all day and happy hour to T-shirts

peterschreiber.media/iStock (WASHINGTON) — The United States is facing a COVID-19 surge this summer as the more contagious delta variant spreads.

FatCamera/iStock (NEW YORK) — As many parents wait for COVID-19 vaccines to be authorized for children younger than 12, doctors

Bill Oxford/iStock (WASHINGTON) — Public health officials are sticking with the recommendation that people get booster shots eight months after

Tomas Ragina/iStock (NEW YORK) — A new, peer reviewed study estimates that the delta variant of COVID-19 doubles the risk

loops7/iStock (WASHINGTON) — U.S. intelligence agencies remain “divided on the most likely origins of COVID-19,” after President Joe Biden’s 90-day