Too much sleep in middle age is bad for health

28 İyun 2014 10:09 | 1 169

Sleeping too much in middle age can be just as bad for you as not having enough, it emerged yesterday.

A study of almost 9,000 people found those aged 50 to 64 who slept for less than six hours a night or more than eight had worse memories and decision-making abilities.

But brain power was only reduced for older adults of 65 to 89 if they slept too long.

The dangers of having too little sleep are well established, but the latest study, carried out by experts at the University of Warwick, indicates that an excess can create similar problems.

Researcher Dr Michelle Miller said the results also suggest that the amount of sleep we need – and its affect on the body and brain – changes with age.

Co-author Professor Francesco Cappuccio claimed getting just the right amount of sleep among the elderly could even prevent the age-related mental decline that can result in dementia.

He added: ‘Sleep is important for good health and mental wellbeing. Optimising sleep at an older age may help to delay the decline in brain function seen with age, or may slow or prevent the rapid decline that leads to dementia.’

Dr Miller said: ‘Six to eight hours of sleep per night is particularly important for optimum brain function in younger adults. These results are consistent with our previous research, which showed six to eight hours per night was optimal for physical health, including lowest risk of developing obesity, hypertension, diabetes, heart disease and stroke.’

Among the older adults there was a significant relationship between their quality of sleep and cognitive skills. Previous research has shown that getting enough sleep is essential because the brain cleanses itself while the body is asleep, getting rid of harmful toxins accumulated during the day.

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