Not just for laughs: Nitrous Oxide (N2O) may have a role in the prevention of PTSD-like symptoms

Nitrous Oxide (N2O) was discovered by Joseph Priestly in 1772 and championed as a surgical analgesic by Humphry Davy, founder of the Royal Institution.  Despite a long and illustrious history in anaesthesiology and analgesia, its primary exposure in the public eye over the past decade has been with regard to highly politicised negative consequences of its recreational use.