There is a notion among college students that sleep is not necessary, and that any missed sleep in one’s youth can be recovered by “sleeping in” later in life. However, the amount of sleep a person gets directly affects how much he or she weighs.
The more sleep you get, the more growth hormone your body produces. Growth hormone maintains your body’s lean muscle mass, and decreases body fat.
When people don’t get enough sleep, they feel hungry all the time. The reason for this is because their bodies are not producing enough hydrocortisone.
Hydrocortisone controls a person’s appetite as well as regulating glucose metabolism, blood pressure, insulin release, and immune system function.
The main reason that sleep is so important to weight loss is because during sleep, hormones are produced which assist the body in losing weight. An additional weight loss hormone produced during sleep is leptin.
Leptin tells your body that you are not hungry anymore, and also burns body fat. On the other hand, if you do not get enough sleep, your body will produce a hormone called ghrelin, which tells your body that you are still hungry, which might influence you to eat more calories than your body requires.
The key to remember about sleep is that you need as much of it as you can get. There is no right number of hours that you need to sleep. Just wake up when you are not tired anymore, and go to bed earlier if you need to.