Why do men have receding hairlines and pattern baldness, while women do not?
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Men have a greater concentration of androgen that is toxic to hair follicle – at a certain dose. Since its evident not all men suffer from this, the question is what causes that higher dose?
We may have found that answer recently. Women do also suffer from forms of alopecia later in life. One such lady went in for some botox treatment on her scalp and then noticed some immediate regrown. So now the guess is since that botox is able to paralyze the nerves for muscles, it relaxed the strain of the skin being pulled over the skull.
This in turn increased the amount of bloodflow to the area. The concentration of androgen to blood would have lowered.
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