There’s been plenty of research showing that when people inhale oxytocin, they tend to have more positive social behavior: trust, generosity,empathy and communication. But if taking one whiff of oxytocin can make younicer, will taking oxytocin regularly keep you nicer? If you take a biggerdose, will it make you even nicer?

U.C. Davis researchers wanted to find out the long-term effects of taking oxytocin, so they studied prairie voles, the monogamous rodents that first demonstrated the positive social effects of this brain chemical.

The U.C. Davis research team, led by Karen L. Bales, treateda group of 89 male prairie voles with low, medium or high doses of inhaled oxytocin. The medium dose was roughly equivalent to the amount given to human subjects in lab studies.

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