A nurse treats a patient wearing the 3D therapeutic virtual reality headset developped by Healthy Mind start-up, at the emergency service department of the Saint-Joseph Hospital in Paris, France, June 7, 2018. The headset immerses the patient in the heart of a Zen garden or an enchanted forest to counter the pain rather than increase the doses of painkillers. Picture taken June 7, 2018. REUTERS/Philippe Wojazer