It makes you more aware, especially with food. Often we don't know how much we eat until we write it all out (with calories, fat, protein, carbs, and whatnot). It's a way of self-monitoring. When you track your exercise it can be more of a motivator, to see your progress, what you're working out, your muscle development etc.
The lymphatic system primarily consists of lymphatic vessels, which are similar to the circulatory system'sveins and capillaries. The vessels are connected to lymph nodes, where thelymph is filtered. The tonsils, adenoids, spleen and thymus are all part of the lymphatic system
so kidney wouldn't be apart of it