Does sleep deprivation cause obesity?
Yea, some researchers found that people who sleep at night shorter, fatter than those who have enough and quality sleep. But why the length of sleep and weight gain is linked and have correlations? The explanation is more or less like this:
- If you stay awake in the middle of the night, you burn fewer calories.
Its a fact that people who have less sleep his/her body burns 5% fewer calories than those who have enough and quality sleep. It also impacts in energy released 20% less after meals.
- People who stay awake and lack of sleep will eat more than those who have enough sleep.
A study in 2011 revealed that women who only sleep 4 hours a day consume calories 329 bigger than those who sleep 8-9 hours. They also tend to eat carbohydrate-containing snacks in the middle of the night.
- You will consume more and more food.
Why? This because a hormone called ghrelin, a hormone that tells the brain to eat. This hormone's function is to increase appetite, increase fat production, and make the body grow. Contrary, a hormone called leptin is in charge of telling the brain that we are full. When we have sleep deprivation, this hormone production is reduced. Leptin levels are usually high at night, so we can sleep and increase during the day when the body does require energy. The low leptin hormone keeps us hungry despite eating.
- Sleep Deprivation will produce more body fat,
People who get enough sleep usually rarely feel hungry. The explanation, while sleeping hormone ghrelin remains the same. But when we only sleep 5 hours, ghrelin levels rose to 9 points. Because this hormone triggers the retention of fat, then people who sleep less store more fat.
- More mealtime.
Indeed this has not been scientifically proven, but experts believe bringing a little sleep means more time to eat.
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