if it was so easy.. (Score 2, Insightful)

The human body is one of the most complex systems on earth. Its complexity is so mind buggling, and that parameters of the body are interrelated with a huge number of bodily functions. Therefore by tweaking one parameter of the system and claiming that it would enhance one feature of the body without having any effects on the rest of the system is rather naive. Such a tweak is most likely to have disastrous effects on othe body functions. If such a tweak was possible, evolution had long discovered it. The fact that such a tweak [which probably occurred during evolution] did not survive should make us think twice. Don't underestimate the "wisdom/intelligence" of evolution.