You shouldn't drink coffee as soon as you wake up or six hours before bed, a sleep expert has revealed. Dr Deborah Lee, Get Laid Beds' resident Sleep Expert, said the cortisol hormone 'follows a rhythm specific to your own sleeping cycle' which peaks within 30-45 minutes of waking up then gradually declines throughout the day. As a result, Dr Lee said the best time for a morning coffee is at 10am or, at the earliest, 45 minutes after waking up in the morning.
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