My answer will be that of two fold, the answer below by Dave Mathews has sparked my interest a bit.
I believe there is an answer for many diseases, the common bodily ailments and the likes. A cure for something like cancer does exist, but if the news was to spread worldwide, that the fact in the cure is one of a natural remedy, and not one which could be drug induced, then there's very little to gain by all the companies that seek to make profit as such including the medical field.
My actual answer to this question lies in the fact that I feel our lives overall is missing something for sure. Nature and its full embrace as god made it all out to be, is definitely something we as modern man and woman are missing out on, because civilization has ruled it out of question to live by mere primitive means. I think if we lived out of raw natural experience without assistance from anything artificial, life as a whole would become much more balanced.
The environment would settle back to equilibrium and become less polluted, our very human bodies would improve overall functionality and metabolic balance with the eco-system. Our dependency on fossil fuels, oil, and even electricity would cease to have purpose, and there would be no issues regarding such artificial needs. What we are truly missing is our human balance with what god designed us all to be, which is purely animal. As long as we run from our native ways, we will continue to have numerous issues in every way, shape and form which are becoming obvious to us all today for sure.