Lesson 1
Sleep Pressure
See how the need for sleep builds through the day, why rest and coffee don't clear it, and when tiredness is a GP matter.
Predict
Marcus gets up at 7 am. By 3 pm he's yawning at his desk; by 9 pm he's wide awake in front of the TV; he goes to bed at 11.
When is his sleep pressure, the body's built-up need for sleep, at its highest?
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Choose a prediction, then select Next to see the answer.