There's now even more evidence to help back up the touted health benefits of sleep and exercise.

Having one health condition can often put someone at risk for another health condition. Such is the case with obstructive sleep apnea, a common but underdiagnosed sleep disorder.

Insomnia can negatively affect your health in many ways because of the stress that lack of sleep puts on your body. It's possible that this stress could even affect your heart health in a big way.

Those scary moments when sleep apnea stops your breathing apparently does more than keep the oxygen from your brain, especially in the elderly.

If you're feeling sleepy or irritable during the day, you may not be getting enough sleep. And not enough sleep could mean you're at higher risk for a range of heart problems.

Untreated sleep apnea has been linked to a long list of health risks. Now silent strokes - where the person doesn't know they had a stroke - can be added to that list.