In the winter, when temperatures decline, your body turns up its internal furnace to create balance. This makes it possible to digest heavier foods and bigger quantities. In the summer, the exact opposite occurs, which means your body's metabolism slows down and part of the reason why you're not as hungry and feel more lethargic when its warmer out.Most whey protein powders are heavily processed with artificial fillers and sweeteners to make it taste better, but this significantly diminishes its nutritional quality.Exercise burns calories, uses up your glycogen stores and stimulates your appetite. When this happens, we are likely to overeat, thinking it's not so bad since we just worked out. Of course, with this repeated logic, you might lose the motivation to keep to a steady workout regimen when your diet diminishes all your hard work.Our mood can be influenced by a multitude of factors, such as stress, environment, poor sleep, genetics, mood disorders, and nutritional deficiencies. A lot of these factors are simply out of our control with the exception of what we eat, which can have a tremendous impact on our mental well being.