People who get too little sleep, or too much, are far more likely to develop diabetes, say scientists.
A study has found that those who did not enjoy the optimum level of seven to eight hours sleep a night were two and a half times more likely to develop a blood sugar abnormality linked to type 2 diabetes. Researchers who studied the habits of 276 volunteers over a six-year period said they did not know the cause. The findings, published in the journal Sleep Medicine, suggest seven to eight hours' sleep a night seems to be the ideal amount for adults to protect against common diseases and premature death.
Scientists say they do not know the cause, but previous studies have shown a link between sleep patterns and obesity, cardiovascular disease and overall mortality. Obesity is known to be linked to diabetes, but the greater risk of diabetes due to sleeping habits remained even when obesity was taken into account. Previous research suggests sleep loss could disturb the production of hormones that control the desire for calorie-rich foods, hunger and energy expenditure.