1. You eat more when you’re tired Feeling ravenous after a bad night’s sleep isn’t your imagination. Just one night of bad sleep disrupts appetite and increases hunger hormones that lead to eating more. The type of food you eat also changes – with a preference towards higher calorie carb rich foods.
2. You feel less satisfied after eating You might think after eating more calories you’d be satisfied – but no. As well as hunger hormones going up, levels of the satiety hormone leptin are lower after a lack of sleep. So you’re getting hit from both sides.
3. You’re more attracted to junk food Images of brain activity show a we crave more junk food and high calorie foods when sleep deprived, coupled with less activity in the area that manages self control.
4. It alters the way you metabolise food A lack of sleep appears to make cells less insulin sensitive, which means issues with blood glucose control
Bottom line? If you’re serious about shifting weight, it’s time to get serious about sleep.