For when in boy or girl the body is loaded with superfluous matter, then, when such superfluities are got rid of in the spermatic or menstrual discharge, their bodies improve in health and condition owing to the removal of what had acted as an impediment to health and nutrition; but in such as are of opposite habit their bodies become emaciated and out of health, for then the spermatic discharge in the one case and the menstrual flow in the other take place at the cost of natural healthy conditions.