just as winter in one s initially it changes the immune system more killer cells are produced she didn t they circulate and can be very helpful in fighting infection. at the same time you get a long term training effect for instance we ve shown that d.n.a. repair function improves in sellers so you see less damage throughout the body once its purpose out on the negotiating. and not just blood is affected exercise also has an impact on body fat complete by donkey we re investigating to the extent i already fast which is also directly so when we suppose doll might be linked to the progression of colon cancer. been looking at what exactly goes on within fact tissue and whether that s related to the stage of chuma patients present with two more. the physicians are also tracking how regular exercise reduces this fat and how that