Purefit Keto Reviews Respiratory Function Many overweight many people have problems with reduced lung capacity and have difficulty breathing, shortness of inability  or  breath to exert themselves. Using OTC weight reduction products will assist you to reduce the weight and increase your lung function to the point where exertion is possible once more. More oxygen to the human brain, blood and  muscle tissues  means better overall circulation and reduced risk of stroke and  blood  clots. Remember, the even more you do, the more that can be done, and you will wish to breathe deeply again  each day  lose the excess pounds.