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How many hours sleep is best?

5th December 2007

Research conducted by the University College London Medical School has found that getting too few or too many hours of sleep is detrimental to health.

The study looked at over 8,000 people aged between 35 and 55. It revealed that in people who had six to eight hours sleep per night night at the beginning of the study, a reduction in the amount of hours they slept was linked with a 110% "excess risk of cardiovascular-related death".

"In terms of prevention, our findings indicate that consistently sleeping seven or eight hours a night is optimal for health," said the study's author Jane E. Ferrie.






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