Most groggy teens drag themselves to school by 7:30 most morning. This is a familiar sight to both parents and teachers. Everyone knows that insufficient sleep is common for teens, but few understand that it can also be the source of weight issues.

Poor sleep is linked to a wide range of possible ailments. However, it also works the other way around. Poor sleep can also be a sign that illness is contributing to the bad sleep.

When counting sheep and hot herbal tea doesn't work, people may turn to sleeping pills to help get a good night's rest. But the long-term risks of these medications may not be worth it.

It's frustrating enough when you toss and turn, unable to fall asleep. It's worse when you can't stay asleep. And now it seems these sleeping problems may affect more than your rest.

Taking sleeping medication may help you get to sleep in the evening. But it may also make you a less alert and possibly more dangerous driver the next morning, according to the FDA.

A trip to Mars involves all kinds of challenges for the human body. It would take over a year just to get there and back. How will astronauts' bodies cope in terms of sleep cycles?

If you're finding it hard to rouse your teen from bed in the morning, you're not alone. Excessive sleepiness appears to be a trend among teenagers.

When snoring indicates someone has sleep apnea, it's more than annoying. It can be harmful to your health — especially if you already have high blood pressure.

Hit the snooze button, kids. It's important for the hard working athletes, too. The extra Z's may help them from getting hurt on the field or the court.

A child's sleeping difficulties aren't fun for anyone. But they're important to address. Sleep is linked to other health issues.