Sleepy Teens

Teen sleep cycles may seem to come from another world. Understand why teen sleep is a challenge and what you can do to promote better teen sleep.

When teens nods off in their morning classes, odds are that they really c nan’t help it. Although they stayed up late chatting with friends on their computer, they couldn’t have fallen asleep at 11 PM even if they wanted to. In fact, there are biological reasons teens shuffle around in the morning, only half awake, and then come alive in the evening.
Teens’ circadian rhythms shift from a morning preference to an evening preference around the time of puberty. Their internal clocks are out of sync with their early morning school schedules. Research indicates that students become alert and eager to focus around noon. Due to changes in teens’ circadian rhythms, they may experience the following:

• Fall asleep in class

• Under perform on school activities and tests

• Appear groggy and grumpy

• Exhibit signs of sleep deprivation

Clinical research now confirms that bright light therapy in specific wavelengths can shift the internal body clock and regulate sleep patterns when used for 15 to 30 minutes upon waking. A teen can reset his or her internal clock by receiving bright light exposure and thereby assist the body in suppressing melatonin during the day, which means he or she will be more alert and able to to focus during the day, and then feel tired at an appropriate bedtime.

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