How can sleep deprivation affect weight loss? Surely the reverse is true! If we’re tossing and turning all night, aren’t we burning a few more kilojoules?
Perhaps, but it’s more complicated than that. When we don’t have enough sleep, our energy is very low. This can trick the brain into thinking it requires more food to replenish our energy stores.
So we tend to eat more. Not only that we tend to crave high energy foods such as ice cream, cakes or sugar laden soft drinks.
To make matters worse, the effects of sleep deprivation can lessen the body’s ability to process glucose efficiently leading to an increased tendency to put on weight. This could also lead to an increased risk of diabetes.
Lack of sleep also produce higher levels of the stress hormone cortisol and lower the metabolic rate which means we burn less kilojoules.