Abstract: This invention relates to a device for ventilating a subject and a system comprising such a device, in particular a virtual reality system. It also relates to a kit comprising such a device or system, as well as a virtual reality content attached to a computer medium. The invention also relates to the applications liable to be made of these devices, system and kit, particularly in the medical, well-being and gaming fields.

Abstract: The present invention relates to composition, formulations and devices for preventing vasovagal syncope attack, and in particular to the use of combinations of capsaicin, caffeine, and/or ?-agonists to prevent syncope.

Abstract: A system for controlling the exhalation pressure of a diver for diving equipment with a ventilation circuit, includes a unidirectional valve acting on an exhalation outlet of the ventilation circuit, and a brake configured to exert an adjustable constraint on the unidirectional valve in order to control the pressure of the gas from the exhalation outlet so as to generate a positive exhalation pressure in the ventilation circuit of the equipment and thus prevent or treat immersion pulmonary edemas.