This question is for William Rassman. I understand that in the studies of both rogaine and propecia, some men on placebos in the control group had actually slowed their hair loss down and even some regrew their hair. I would like an understanding of this. If a man assumes he will grow hair, can the mind trick the body into growing growing hair? If nothing is blocking the DHT and there are no other medications used I find this puzzling.

What you are referring to is known as the “placebo effect”. The placebo effect is the measurable, observable, or felt improvement in health that is NOT attributable to treatment. Read more about the placebo effect at The Skeptic’s Dictionary.

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