Muscle strength is crucial in making it easier to do the things you need to do on a day-to-day basis, Pire says especially as we get older and naturally start to lose muscle.
To weight train the energy comes from calories consumed. Depends on the type of foods you are eating to perform a certain way. Like when you eat carbs before a game or a workout, carbs are for short term energy storage. It is also beneficial because when you burn more calories than consumed that is the key to weight loss
