The actuality is that it is accessible to acceleration up or apathetic down our metabolism at any age by adjusting the bulk of exercise we do, the bulk we eat and what we eat. do added exercise, bake up added energy/do beneath exercise, Fat and glucose are the body's two capital activity sources. Fat you apperceive well, glucose comes mainly from carbohydrate foods like rice and aliment and potatoes and protein is supplied mainly by meat and beans and dairy products.