Life span changes 0.0 / 5 ? PsychologySleepA2/A-levelAQA Created by: izzy89Created on: 20-05-16 16:43 1026853197 Across 1. If babies are _________ they spend 90% in active sleep. (9) 5. A longitudinal study found that production of ______ hormones decrease as sleep decreases. However this was only done on males. (6) 7. Adolescents should spend ____ to 10 hours in sleep per day, but they tend to spend less time in sleep, particularly in countries who place a high importance on extra-curricular activity. (4) 8. It is thought that people in old age have less sleep because their _____ stop growing (5) Down 1. Crowley et al describes adolescents as having delayed sleep _____ syndrome because hormone changes upset the circadian clock. (5) 2. Babies sleep pattern could be explained in terms of their brain __________ and a considerable amount of learning taking place. (10) 3. The change in sleep in adolescence may be explained by ________ as they are primarily released at night and can disrupt sleep. (8) 6. Babies spend 50% of sleep in ______ sleep, otherwise known as REM. (6) 9. Adults have ______-5% REM sleep. (6) 10. Some believe that school should start _____ because of changes to sleep in adolescents. (5)
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