Patients who are afraid of acrophobia or altitude in California have tried a new therapy. In the virtual landscape they are located on the mountain and in 50 minutes they must travel the edge of a ravine. Then they have to pass through a narrow passage and finally travel a bridge. The results obtained have been very satisfactory. And it is that in a house (this time in a real house) to weight fifteen, in a transparent glass elevator, they have achieved sixteen volunteers.