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:
School-aged children (6-12 years of age) average approximately 10-11 hours of sleep in a 24-hour period. Research studies suggest that adolescents generally require about 9-9.25 hours of sleep per night ; however, many are getting less than 8 hours of sleep per school night.