VR-MARS Virtual Reality, Medical Assistance and Rescue for Space

Inclusion Criteria: Healthy male or female volunteers. * Aged between 18 and 66. * Not currently pregnant. * Affiliated to a social security system or, for non-Europeans, holders of a European Health Insurance Card (EHIC). * Have signed written consent for the study. * Have passed a standard JAR FCL3 Class 2 (Private Pilot Aptitude) medical examination less than 1 year old. Exclusion Criteria: On the day of the flight, before the volunteer boards the plane: * Flu, digestive symptoms (nausea, vomiting), fever. * Pregnancy: a urine pregnancy test will be performed on the morning of the flight before boarding. * Altered mental state (flight anxiety, phobia). * Failure to attend the safety briefing. During the flight : * Non-compliance with basic safety instructions. * Flight-related side effects: fatigue, motion sickness.