1 Causes of heat exhaustion include activity in a hot environment that can overwhelm the body's ability to cool itself, causing heat-related symptoms, and living in a hot environment without adequate access to water for dehydration. 2  Signs and symptoms of heat exhaustion include. 3  profuse sweating,  weakness,
The average amount of sleep that teenagers get is between 7 and 7 Â¼ hours. However, they need between 9 and 9 Â½ hours (studies show that most teenagers need exactly 9 Â¼ hours of sleep). Teenagers do not get enough sleep for a number of reasons:
Teen sleep cycles might seem to come from another world. Understand why teen sleep is a challenge â and what you can do to promote better teen sleep. Teens are notorious for wanting to stay up late and for not wanting to get up early. If your teen is no exception, find out what's behind this behavior and how you can help him or her get better sleep â starting tonight.