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Sep 18, 2009

Most teens need on the order of 9-plus hours nightly to have optimal sleep. The need for sleep does not really change across adolescence, the amount of sleep young people get does decrease in older teens. Thus, the sleep deficit grows right along with the youngster.

Many factors combine to decrease sleep in adolescents. We can think in general of two major factors: behavior, by which that mean all the psychological, parental, societal, cultural features of a teen’s life, and biological, means the brain processes that regulate the amount and timing of sleep. Adolescents and their sleep patterns in 21st century as a version of the "perfect storm."

The sleep-wake bio-regulatory factors appear to undergo significant changes during adolescence. These changes lay the ground work for the biological night to occur later during the teen years than before. The circadian timing system (daily biological clock) seems to slow down and lag behind as young people progress through the middle school years. At the same time, the sleep pressure system appears to change in a way that makes it easier to stay awake longer, though without changing the amount of sleep that is needed.

It is no longer an issue of electric lights in the home, but many teens have a veritable technological playground in their bedrooms: television, computer with 24/7 Internet access, telephones, electronic game stations, MP3 players, and so forth. These technologies can also provide instant and incessant contact with peers. Societal/media pressure to consume these technologies is now higher than ever. Yet society also requires that teens go to school at a time of day that is at odds with their biological and social lives. It’s more surprising to find teens in the U.S. today that get enough sleep than those who get too little.

Teens may be driven to things that can wake them up simply because they’ll fall asleep if they do not. So we see caffeine, late-night Internet, chat rooms, IM’ing, cramming in activity after activity as a means to keep awake and necessitating more of the same to stay awake in the face of declining sleep. This is another way to think of the negative spiral of too little sleep.

These patterns can disguise the extent of their sleep deficit for many teens and their parents as well. On the other hand, we do see the signs emerge in many young people, each may be vulnerable in different ways. Thus, we see the teenager who falls asleep driving home late at night; in another teen, the problem emerges with titanic struggles to wake up in the morning, often failing and resulting in late or missed school; another may simply feel sad and moody and blue, lacking initiative or motivation; in other teens, grades begin to suffer as the teen struggles to keep awake during class and while doing homework; another may turn to heavier drugs to get some positive and arousing sensations; many just struggle along in a kind of haze, never knowing how to feel or do their best.

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