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 * 1) Sleep slows metabolism, heartbeat and breathing rate, which helps the body replenish after daily physical activity.
 * 2) **Releases** growth hormones in young adults: While you sleep, a hormone is released that aids the growth of bones, tissues and new red blood cells.
 * 3) Those who have trouble sleeping because of a sleep disorder can have difficulty dealing with school, work and relationships when awake.
 * 4) Many adolescents actually have a common sleep disorder called a **delayed sleep phase syndrome**. The disorder, which is caused by changes in the body's internal clock associated with puberty, means it is normal to be a "night owl" at just about the time your family wants to go to sleep
 * 5) More serious sleep disorders include sleep apnea, in which someone temporarily stops breathing during sleep, or chronic insomnia, in which someone regularly has difficulty falling asleep.
 * 6) Twenty percent of high schoolers sa they have fallen asleep in class.
 * 7) One study looked at the relationship between sleep and grades. The study found that teenagers who got more sleep had more As and Bs, while teens who got less sleep got more Cs and Ds.
 * 8) People used to think of sleep as a time during which nothing happened. Studies show, however, that the brain and body are very active while we sleep.
 * 9) Everyone has problems sleeping at times, especially during adolescence. Below are some tips to increase your chances of sleeping better.
 * 10) Eliminate caffeine (or foods that have caffeine, such as chocolate).
 * 11) Set a regular sleep schedule and stick with it, even on weekends.
 * 12) Avoid stimulating TV, music or computer time before bed.
 * 13) Use meditation or relaxation techniques.
 * 14) Try the old standby: counting sheep -- in other words, activities that are repetitive and lack stimulation.
 * 15) Avoid exercise after dinner.