I have come across many people over the years that believed eating before bed leads to weight gain. The general idea is that our body slows down when we sleep and would store calories eaten at night instead of using them as energy. Is there any truth to this assumption? Yes and no. Our bodies do indeed slow down during sleep, but not as much as you would think. The real reason for possible weigh gain has to do with the Thermic Effect of Food. I will talk about the Thermic Effect of Food and weight gain and whether or not eating before bed causes negative metabolic changes in insulin sensitivity, cholesterol levels and high glucose levels in this blog. I will start by talking about Resting Metabolic Rate and sleep.