1pm: Soak up some rays
Exposure to sunlight can help to keep something called our 'circadian rhythm' going, a mechanism that causes drowsiness at night and wakefulness during the day. 'For great sleep, you need a lot of light in the day and a very dark bedroom at night,' says Dr Rubin Naiman, director of Circadian Health Associates. 'I always suggest patients take a daytime walk, even if it's raining, to expose their brain and body to full-spectrum daylight.'
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