Muscles Love Oxytocin: So-Called “Hug Hormone” Important In Muscle Regeneration

The 'love drug'? More like the muscle rejuvenator!
The ‘love drug’? More like the muscle rejuvenator!

I’ve written before about the most lovable molecule on the planet, oxytocin, and how it isn’t the warm and fuzzy chemical it’s purported to be. Though you’ll often hear it referred to as the ‘love hormone’ or the ‘trust molecule’, oxytocin has a wide variety of effects in our bodies. For the most part, though, scientists (and especially the media) have focused on how it affects our behavior—how sniffing oxytocin changes how so-and-so group of people act when doing such-and-such. But this month, scientists from University of California Berkley reported on a completely different effect of oxytocin—one that has nothing to do with love, trust, or how we behave—and it’s one that might just make the most overhyped molecule on the planet deserve a little bit of the love it gets.

Continue reading “Muscles Love Oxytocin: So-Called “Hug Hormone” Important In Muscle Regeneration”

Trust the “trust hormone”? Oxytocin can increase deceit

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Oxytocin, the “moral molecule”. Image by Calvero c/o Wikimedia Commons

Oxytocin has perhaps the best reputation of any molecule on the planet. In a culture of chemophobia where any compound is fair game for attack, oxytocin has been heralded as “The Source of Love and Prosperity“. If you listen to the tales, this “moral” molecule—the “trust hormone“—is the “most amazing molecule in the world,” and is your one-stop shop for love and happiness. All you have to do is give someone a hug, and your brain will be flooded with the magic stuff.

But as many (most notably Ed Yong) have pointed out, oxytocin isn’t the sweet compound we’re told it is. Sure, it has been associated with generosity, desire, and trust, but oxytocin has a dark side, too. It can increase envy and gloating, promote cliques, and even decrease cooperation. Now, a new study published today in PNAS adds to the molecule’s moral ambiguity: huffing oxytocin can lead to dishonest behavior if that behavior is seen as being for “the greater good”. Continue reading “Trust the “trust hormone”? Oxytocin can increase deceit”