During the 19th century, it was the opinion of some western physicians that menstruation had no purpose whatsoever, that it was a pathological condition, which did not exist in pre-biblical times. 바카라It has become a fixed habit of the female sex in consequence of the vitiating influence of civilisation.바카라 In 1878, the British Medical Journal carried a series of letters that claimed a menstruating woman could cause bacon to putrefy. In 1920, Dr Bella Schick, who바카라d earlier become famous for developing a test for susceptibility to diphtheria, claimed to have isolated a 바카라menotoxin바카라 in the perspiration, saliva and blood of menstruating women. This was seconded by David Macht of the Johns Hopkins School of Medicine, who after his own set of experiments, concluded that these menotoxins 바카라contaminate by contact to such an extent that they retard development and even kill plants바카라. Funnily, the experimental designs of Schick and Macht did not use a control fluid (non-menstrual blood). The last mention of menotoxin was in an obscure letter to the editors in the Lancet in 1977 by Brian, Heathcoat and Pickles from the departments of botany and physiology, University College, Cardiff. 바카라We conclude that a component of menstrual extracts caused an acceleration of ageing and browning in excised Kalanchoe flowers (incubated in humidity chambers).바카라 The authors speculated that the toxin could be a prostaglandin. This was patently moronic. Prostaglandins are found in blood and clots, and possibly every kind of human tissue. Curiously, the controls used by the authors were unused tampons and towels. In any case, menotoxins weren바카라t described as miasmatic or vaporous. They didn바카라t fly out and cause harm. Also, there have been no studies reported on the effects of 바카라menstrual extracts바카라 on the human penis.