Too little sleep also interferes with the body's ability to regulate glucose and can cause inflammation leading to heart problems and a rise in blood pressure. "There's a stress response to being in a sleep loss."

On the other hand, there are people who are suffering from sleep disorders. These disorders include:

• Insomnia, an inability to go to sleep or stay asleep.
• Sleep apnea, or breathing interruptions during sleep that cause people to wake up repeatedly.
• Restless legs syndrome, a tingling or prickly sensation in the legs that causes a person to need to move them, interrupting sleep.

• Stick to a regular sleep schedule.
• Avoid exercising closer than five or six hours before bedtime.
• Avoid caffeine, nicotine and alcohol before bed.
• Avoid large meals and beverages late at night.
• Don't take naps after 3 p.m.
• Relax before bed, taking time to unwind with a hot bath, a good book or soothing music.
• If you're still awake after more than 20 minutes in bed, get up and do something relaxing until you feel sleepy. Anxiety over not being able to sleep can make it harder to fall asleep.

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