10. Higher Rate of Obesity
Sleeping too much can contribute to the risk of obesity. This may be related to less time spent engaging in exercise and more time spent in bed. On the other hand, increased time spent sleeping may in fact be a byproduct of obesity, as well as a contributor to the condition. A study by the Sleep Research Society noted that both low levels and high levels of sleep contributed to the risk of obesity. Obesity can contribute to fatigue by placing a strain on joints and muscles and requiring extra effort to carry added weight.
9. Increased Risk of Diabetes
The relationship between sleep and diabetes risk may have the same J-shaped curve seen with the risk of heart disease and stroke. The American Association for the Advancement of Science reports on a study that links sleep with diabetes. In this study, participants who slept more or less than seven to eight hours each night were 2.5 times as likely to develop type 2 diabetes or impaired glucose tolerance. Furthermore, the American Academy of Sleep Medicine recommends that patients with type 2 diabetes be tested for sleep apnea due to the strong link between the conditions.
8. Excessive Sleep May Trigger Headaches
Sleeping too much can cause you to wake up with an aching head. According to the National Sleep Foundation, people with sleep disorders are two to eight times as likely to suffer from headaches. While the reason too much sleep can cause headaches is not fully understood, there are several possibilities for this occurrence. First, sleep apnea, in which breathing is disrupted throughout the night, contributes to snoring and headaches. Individuals who grind their teeth at night may also awaken with an aching head. Finally, tension headaches can be aggravated by sleeping in the wrong position or on an unsuitable pillow.Related: Sleep Facts and Myths