Sleep deprivation research usually focuses on what it does to the 1) ___. Now, new evidence suggests that lack of sleep may also be devastating for the body and may possibly help to bring on 2) ___. In a US study, published in Lancet, researchers found that just one week of sleep deprivation altered subjects’ hormone levels and their capacity to 3) ___ carbohydrates. During sleep deprivation, the blood sugar level of the men who participated in the study, took 40% longer to drop, following a high carbohydrate meal during sleep deprivation, compared with during the sleep recovery period. In addition, when deprived of sleep, the men’s ability to secrete and respond to 4) ___, dropped by 30%. The men also had higher night time levels of cortisol, which helps to regulate blood sugar and to lower levels of thyroid stimulating 5) ___. Each of these biological responses to sleep deprivation places an individual at greater risk of developing Type II (adult onset) diabetes. The good news, according to the researchers, was that the sleep debt could be made up by spending longer than the normal eight hours in bed, which helped to return the body’s 6) ___ balance to normal.

ANSWERS: 1) mind; 2) diabetes; 3) metabolize; 4) insulin; 5) hormone; 6) chemical