Tom works night shifts in a warehouse with no windows. He sleeps during the day but often wakes after a few hours. On his days off he struggles to fall asleep at night. His manager suggests he spends time outside in daylight at the same time each day.
Evaluate the role of internal and external influences on sleep. You must make reference to the context in your answer.
48 exam-style questions on Edexcel GCSE Psychology 9.1 Sleep and dreaming, covering 9.1.1 Functions, features and benefits of sleep, 9.1.2 Internal and external influences on sleep, 9.1.3 Sleep disorders, 9.1.4 Freudian theory of dreaming (Freud, 1900), and 9.1.5 Activation Synthesis Theory (Hobson and McCarley, 1977). Each one has a worked solution and a mark scheme showing where the marks go.