Blood levels of HDL, the famously "good" kind of cholesterol, may not make a big difference to heart health after all -- particularly for Black people, a large new study suggests.
Most people consider drowsy driving dangerous, but an estimated 37 million Americans still get behind the wheel at least once a year when they're so tired they can barely keep their eyes open.
A large new study of U.S. veterans suggests that when prostate cancer screening rates go down, the number of men diagnosed with advanced cancer then rises.
