Let's make this brief here. Exercise, especially intense does help you manage your weight as it is another tool of many that can be used. But the most important one, the most overlooked one, the most obvious one is - drum roll please - WHAT YOU CONSUME DAY TO DAY. Why am I ranting about this today? Simply because I see to many people trying to out train their shitty nutritional decisions. Not to say it cant be done but for practicality sake it doesn't last. Your body will adapt to the demands placed upon it therefore making you have do more and more to maintain in the end. Exercise in excess doesn't mean "healthy", in fact it usually brings upon an injury, or at least a bout of fatigue or depression like feelings. Do your health, your body, and your mind a favor by letting your nutritional choices be the majority owner to managing your weight. Exercise can then be about skills, and really training for an objective. Or it can still certainly be the "icing on your cake".