The Economist. March Receptors for serotonin show a high affinity for cathinone, suggesting this chemical is responsible for feelings of euphoria associated with chewing khat. Permalink 13 notes contemporaryart. Although the priest also repeated the claim  that Khat chewing causes impotence, this sort of claim was disputed by a local politician from the Roman Catholic Diocese of Meru , which although it home to an anti-khat program run by Caritas Internationalis ,  still experiences khat use. This website uses Google Analytics, a web analytics service offered by Google Inc. According to the defence, the ruling recognises that there is no empirical evidence that khat is harmful. Frontiers in cognition. The Cambridge World History of Food. San Clemente: Internal references and links On our webpages, we have added links to websites whose content and updating is beyond the sphere of influence of Projektentwicklung Oberlindau GmbH.