We’re continuing to learn that shortchanging our sleep — even for just one night — can lead to less healthy food choices the next day. The latest study took a look at subjects’ MRI scans after a night of sound sleep and again after a night of sleep deprivation. The MRI scans showed that sleep deprivation activates an area of the brain that makes you view food as more desirable. In other words, it prompts cravings. This adds to other evidence showing that insufficient sleep increases hunger while also making us less likely to stay active. Taken all together, it means that a healthier sleep situation can encourage a healthier weight.
Your body needs a certain amount of essential vitamins and minerals to function properly. What happens when you don’t get enough of them? What happens when you eat too little food, or when the food you eat isn’t sufficiently nutritious? Perhaps our bodies catch on and reply by increasing hunger levels. After all – if we eat more, we increase the chances of consuming enough of whatever nutrient we are lacking.
In a way, moderate-intensity physical activity is that "magic pill" a lot of people are looking for, because the health benefits go beyond keeping your waistline trim: Not only can it reduce your risk of cancer, stroke, diabetes and heart attacks, but studies have shown that physical activity can significantly improve the moods of patients with major depressive disorders.