Sometimes I wonder why human beings did not evolve to have the ability to control the body at the micro level. Meaning, there are so many processes that are controlled by the brain automatically and cannot be overruled by conscious will. Obviously, this is how it should be most of the time. We would not want to be always consciously remembering to breathe or swallow or generate hormones. That kind of stuff SHOULD be on autopilot. But I think there should have been a manual override which would allow the conscious brain to control these micro processes should it want to. Imagine being able to send platelets to a specific part of your body to heal better. Or being able to increase the absorption of a drug by temporarily reducing the acidity of your stomach.
Obviously, for most of human history we did not understand how our own body worked and so it was a good design. But now, as we learn more and more about how we work, wouldn't it be cool if we could evolve to direct our own bodies for our own benefit?