A doctor and a clown exchange smiles during a visit to the Hospital Universitario del Valle, on September 7, 2012, in Cali, Colombia, as part of the activities of the First National Congress of Hospital Clowns. The “hospital clowns” are health professionals who by means of laughter therapy try to lower the levels of stress of the inmates and to reduce their suffering. AFP PHOTO/Luis ROBAYO (Photo credit should read LUIS ROBAYO/AFP/GettyImages)
