OuterHaven89

I was thinking of the exact same thing. Another addition to this would be fitness...as in when you do a lot of running or anything that requires physical strength it would increase your fitness skills overtime which would make you be able to run longer(bigger stamina),faster (maybe) and decreases chances of illness though the fitness skill could also depend on what food you eat if you keep on eating bad food it could decrease the skill and also fitness skill could make less of a hassle on what you have for inventory..as in you would run less slower if you have good fitness but also have heavy stuff in your inventory.