Sleeplessness Is Depressing
Over time, lack of sleep and sleep disorders can contribute to the symptoms of depression. The most common sleep disorder is insomnia and it has the strongest link to depression in people. Those with insomnia are five times more likely to develop depression as those without. In fact, insomnia is often one of the first symptoms of depression
Losing Sleep Can Make You Gain Weight
Lack of sleep seems to be related to an increase in hunger and appetite, and possibly to obesity. People who sleep less than six hours a day are almost 30 percent more likely to become obese than those who slept seven to nine hours.
Not only does sleep loss appear to stimulate appetite, it also stimulates cravings for high-fat, high-carbohydrate foods.
Lack of Sleep Kills Sex Drive
Sleep-deprived men and women report lower libidos and less interest in sex. Depleted energy, sleepiness, and increased tension may be largely to blame.
For men with sleep apnea, a respiratory problem that interrupts sleep, that may be another factor in the sexual slump.
Studies show that many men with sleep apnea also have low testosterone levels. In the study, nearly half of the men who suffered from severe sleep apnea also secreted abnormally low levels of testosterone during the night.