Getting your five a day? Don't get too comfortable - there is now a host of recommended daily and weekly prescriptions to follow for better health, covering everything from sleep to sunshine. The latest came from researchers at Cambridge University, who studied the effects of work on mental health and life satisfaction, and concluded eight hours of work a week is the key to wellbeing. That followed a finding from the University of Exeter, based on interviews with 20,000 people, that we should all be aiming for a two hour "dose" of nature every week.

Psychologist Linda Blair says the

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8 hours of sleep

10,000 steps

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5 portions of fruit and vegetables

8 glasses of water