Napping in the appropriate duration, it is important to improve concentration, alertness, and motor function.
Instead, spend too long for a nap could indicate health problems, namely diabetes type two.
Experts say that people who have undiagnosed diabetes often feel tired during the day. Even so, there is no evidence that a nap will increase the risk of diabetes.
Large-scale study, conducted by scientists from the University of Tokyo that found a link between sleep duration during more than 60 minutes with an increased risk of diabetes by 45 percent.
Long nap can also be caused due to disturbed night's sleep. The cause of the sleep disorder is often triggered by sleep apnea (stopping breathing during sleep).
Sleep apnea is also a risk factor for heart attack, stroke, and metabolic diseases such as type two diabetes.
Lack of sleep, due to the dense bustle and social life, it will also increase the appetite. This can lead to diabetes.
In addition, people whose health began to fail, or in the early stages of diabetes, it is likely to take a nap in a long duration.
Nevertheless, this study was observational and not show cause and effect. People who have always sleepy during the day and spend time lingering on the bed may need to check their health.