There is not much to add to the known facts (see, for instance the comprehensive review recently published by Bouquet),    In the experience of Abdulla„ in Egypt, there is, in particular, a diminution of resistance; among cannabis smokers diseases of the respiratory tract are frequent, bilharziasis and circulatory as well as alimentary diseases become refractory, etc.

Abdulla agrees that there are no physical abstinence symptoms as with opiates, but the weakness of will which develops and the psychological fixation on cannabis cause the smokers to relapse again and again.

Parreiras is of the opinion that there is a typical physical symptomatology in the description of which he agrees mainly with earlier authors. He does not think that there is a real aphrodisiac stimulation, but chiefly a suggestive effect, widespread, however, among the population. Bulimia is a typical cannabis symptom; there are cannabis smokers who say that because of the hunger they develop they are capable of stealing and ..,, even of killing. They have a particular longing for sugar and sweet things in general, due to hypoglycemia cannabica, for instance, bunches of bananas, such as are found in Brazilian markets.

Parreiras also refers to the cannabis cachexia observed in Brazil among inveterate smokers, which can appear even some time after withdrawal, taking the form of prostration, low spirits, dyspepsia, frequent attacks of diarrhoea, inappetence, bronchitis - in short, a picture of human ruin, with a grave prognosis.

Other references to physical effects are included in the chapter on mental effects (for example, FernAndez Sânchez and Gonzalez Mas, for it was deemed inadvisable to separate certain features from the ge.ux.i-L clinical pictm-e presented, in which the psychological aspect is of much greater importance than the physical.