When people do not get enough sleep, they wake up feeling unrefreshed and have the just five more minutes syndrome. The National Sleep Foundation says the number of hours a person gets during the night reflects how tired he or she is during the day. This daytime sleepiness interferes with people s daily activities. A body needs at least eight hours of sleep a day to carry out its functions. When the body does not get enough sleep, it can cause the immune system to weaken and metabolism to slow down, which can cause weight gain.
Sleep deprivation can also cause people to feel hungry all the time.
The body needs a certain amount of energy to get through the day. When a person is sleep deprived, the body will try to make up for that loss of energy by craving more energy from alternate sources, such as food. To stay healthy, happy and energized to make it through the busy week, get some rest. If it is impossible to get eight or more hours of sleep per night, consider taking daily naps. Anything more than 45 minutes can cause grogginess.