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Everyone knows that going to bed early is good our health. Scientists say they have found the healthiest time to go to bed. Researchers the U.K. Biobank say a bedtime between 10pm and 11pm is best. They say people who sleep these times have a lower risk heart disease. Six years ago, the researchers collected data the sleep patterns of 80,000 volunteers. The volunteers had to wear a special watch seven days so the researchers could collect data on their sleeping and waking times. The scientists then monitored the health the volunteers. Around 3,000 volunteers developed heart problems. They went to bed earlier or later than the "healthy" 10pm 11pm timeframe.

One the authors of the study, Dr David Plans, commented his research and the effects of sleeping times on the health our heart. He said: "While we cannot conclude causation our study, the results suggest that early or late bedtimes may be more likely to disrupt the body clock, [negative] consequences for cardiovascular health." He said it was important our body to wake to the morning light. He said: "The riskiest time [to go to bed] was after midnight because it may reduce the likelihood seeing morning light, which resets the body clock." He added that we risk cardiovascular disease if our body clock is not reset properly.

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