The 14-year-old's grades were beginning to suffer. Steps toward better sleep hygiene weren't helping the teen, who had put on weight over the last few years.

When it comes to infectious diseases, measles is “the canary in the coal mine,” one expert said.

If you've been snoring more than usual recently, waking up with a sore throat or feeling groggy even after a full night of shuteye, it could be symptoms of sleep apnea. This common condition can tank ...