Democratic candidates for president are outpacing Republicans in donations from the health care industry.

  Drug-resistant staph infections are scary. But they?re nothing new.

  Most athletes will have back trouble sooner or later ?if they?re not suffering already. Here?s what to do about it.

  A former Harvard quarterback has developed a promising technology to protect football players from concussions.

  Some parents kept their children out of a Brooklyn middle school a day after learning about the death of a student who had been infected with a drug-resistant strain of bacteria.

  Many companies are seeking to reduce their medical bills by paying for programs to help employees stop smoking.

  The House passed a bill to provide health insurance for 10 million children on Thursday, but supporters did not have enough votes to override the promised veto.

  New research underscores a vast transformation in the way scientists have come to understand the sleeping brain.

  By all evidence, outrageously bad dreams are a universal human experience.

  More women with breast cancer are choosing to have their healthy breast surgically removed along with their affected breast.

  Dr. Emmanuel Mignot has devoted his career to studying narcolepsy, a disease caused by a deficiency of the brain cells that make the neurochemical hypocretin.

  Many people who take sleep medications think they work far better than laboratory measurements show they do.

  Bird sleep is so mysterious that scientists are considering several answers, all intriguing.

  Poor sleep among the elderly, it turns out, is not because of aging itself, but mostly because of illnesses or the medications used to treat them.