South Carolina reported 26 new measles cases since Friday, bringing the total number of cases in the latest outbreak to 211. Some people were exposed in schools or churches.
A new study finds that sleep timing is linked to dementia risk, as people with weak circadian rhythms face a 2.5 times higher risk of developing cognitive decline.
New York reports record flu hospitalizations and cases, with a rise of nearly 1,000 in a single week. Health experts urge immediate vaccination as a new variant spreads.
Some cancers may not require immediate treatment, from prostate cancer to thyroid tumors. Medical experts share when "watchful waiting" may be the best approach.