The next trend in lifestyle-enhancing medication could be oxytocin inhalers. The hormone enhances trust, confidence and sociability and can be nasally delivered, making it an instant treatment for the symptoms of everything from autism to anxiety disorders.

Of course, since oxytocin makes people more trusting, it could also be used surreptitiously to obtain compliance from unwitting parties, for anything from sex to salesmanship to outright robbery.

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