If weight loss is your goal then this article is for you. High energy workouts such like aerobic exercise, running, rowing, walking, swimming or any fitness routine that gets your energy pumping in the early morning delivers the best weight loss results.
In the morning insulin levels are at their lowest and glucagon levels are at their highest. This means when you start exercising first thing before breakfast fat cells are used up for your muscles for energy. Instead of carbs being the main source for energy fat is the main target to burn. You don't burn more calories, but you do burn more fat !