The overall purpose of philosophical argument should be to answer the question of how best to live

It seems to me that your argument is dealing with a definition of philosophy that doesn't apply to the definition that actually exists. The word philosophy itself originated from ancient Greece and literally means the "love of wisdom." You can argue that not "pooping in the water supply" is not philosophy and that it is instead science... but it would appear that because reason/science dictate that pooping in the water supply is bad for sanitation and health, that it is wise to not poop in the water supply. The love of this knowledge is thus philosophy. In ancient times, the fields of science and philosophy were intertwined and studied together with one another. There wasn't the separation in fields that exist today. Nearly everything that we do in this life is concerned with how we live. Do we go exercise or sit around and watch television? What kind of work do we want to do to make money so that we can live? How much sleep do we need to get tonight to function effectively tomorrow? What should we eat for dinner such that we can be healthy and give our bodies what we need? While all of these questions deal with different issues, they all deal with how we live. Our lives themselves consist of everything ranging from the health of our bodies, the status of our families, our social lives, our education and work, and the habits we form. In claiming that "there is no philosophical aspect (improper grammar) behind discerning how to Live (I don't understand why this was capitalized) correctly," is the same thing as saying that there is no wisdom to be learned and loved about learning how to live correctly. It is also previously argued that "philosophically one does not come to the conclusion it is best to exercise, that is fact..." This is simply not true. It is true that it is a fact that it is better to exercise and this has been scientifically proven. However, science and philosophy are not mutually exclusive. Again, philosophy itself is merely the love of wisdom. Wisdom can be obtained through many different means but when one educates himself/herself with the knowledge that it is healthier to exercise than to not... it becomes obvious to that individual that it is wiser to exercise. This wisdom that is obtained through obtaining said knowledge is very much philosophy. However, areas of philosophy such as skepticism do not play the same role. Questioning whether the couch we are sitting on, the football we are trying to catch, or the bus that is speeding toward us are real do not yield definitive answers. They cannot reach definitive answers because every answer we reach, we can also be skeptical of. Oftentimes, the answers we reach lead to a deadening of wisdom rather than an increase in wisdom. A good example of this is with the existence of our physical bodies. If we are skeptical as to our own bodies existence, we do not feel it as necessary or wise to take care of those bodies. This leads to a decrease in health and fitness which cause a physiological change in our bodies. This thus leads to a decrease in the goodness of our lives. I believe it is unwise to pursue questions that cannot increase our knowledge, but lead to a decrease in how well we live our lives. Thus, skepticism is an unwise pursuit in philosophy. It causes us to question and prevent ourselves from acting in such ways that are wise for us. Any true pursuit of knowledge or wisdom should enhance our lives. Such fields could considered ethics because of how the wisdom we obtain by the knowledge of this field causes us to live and treat one another better. Existentialism is another sect of philosophy that is beneficial by this train of thought because it stresses the existence of free will which causes individuals to "act" as if they have free will. This causes individuals to take their own actions, fates, and lives into their own hands. This is beneficial to the individuals lives, and thus, wise. The ways in which Socrates questioned individuals' viewpoints, the ways they thought, and the ways they lived was another valid pursuit of wisdom. This caused people to question their own lives which brings into light the ways in which they could be living better and is thus, wisdom. Any pursuit of knowledge that does not cause the individual pursuing the knowledge to live better in some sense is not philosophy. It does not increase wisdom.