A Mexican technique whereby dolphins are used to aid childen with sociological and neurological problems such as Down's syndrome and cerebral palsy. This experimental technique takes place in the dolphin aquarium in the San Juan de Aragón forest in Mexico City. The treatment consists of aquatic excercises with trained dolphins and the help of a therapist. The ultrasonar system of the cetaceans stimulates the central nervous system, with its snout it touches the affected zones transmitting a special therapeutic energy. Mexico is the first country in the world applying this technique to pre-school children.