Though often referred to as the "trust hormone" oxytocin is increasingly being seen as a brain chemical that does a lot more than just bring couples closer together.


New research is suggesting that oxytocin plays a crucial part in enabling us to not just forge and strengthen our social relations, but in helping us to stave off a number of psychological and physiological problems as well. But more conceptually, oxytocin is proving to be a crucial ingredient to what makes us human. Here are ten reasons why oxytocin is simply the most incredible molecule on the planet:

1. It's easy to get

One of the neat things about oxytocin is that you can get your fix anywhere and at any time. All you need to do is simply hug someone or shake their hand. The simple act of bodily contact will cause your brain to release low levels of oxytocin — both in yourself and in the person you're touching. It's a near-instantaneous way to establish trust. And the good news is that the effect lingers afterward. There's even evidence that simply gazing at someone will do the trick — or even just thinking about them. And you shouldn't feel limited by the human species; it also helps to hug and play with your pets. And for those who can't produce enough oxytocin on their own, or who feel they could use a boost, the molecule can be easily synthesized and administered as a drug.


2. A love potion that's built right in

Often referred to as the "love molecule", oxytocin is typically associated with helping couples establish a greater sense of intimacy and attachment. Oxytocin, along with dopamine and norepinephrine, are believed to be highly critical in human pair-bonding. But not only that, it also increases the desire for couples to gaze at one another, it creates sexual arousal, and it helps males maintain their erections. When you're sexually aroused or excited, oxytocin levels increase in your brain significantly — a primary factor for bringing about an orgasm. And during the orgasm itself, the brain is flooded with oxytocin — a possible explanation for why (some) couples like to cuddle after.

3. It helps mom to be mom

But oxytocin isn't just limited to helping couples come together — it's an indispensable part of childbirth and mother-child bonding. Oxytocin helps women get through labour by stimulating uterine contractions, which is why it's sometimes administered (as Pitocin) during labor. It's been known to promote delivery and speed up contractions. After birth, mothers can establish intimacy and trust with their baby through gentle touches and even a loving gaze. In addition, mothers can pass on oxytocin to their babies through breast milk. And it's worth noting that fathers can reap the benefits of oxytocin as well; new dads who are given a whiff of oxytocin nasal spray are more likely to encourage their children to explore during playtime and are less likely to be hostile.


4. Reduces social fears


Given its ability to break-down social barriers, induce feelings of optimism, increase self-esteem, and build trust, oxytocin is increasingly being seen as something that can help people overcome their social inhibitions and fears. Studies are showing that it may be effective in treating debilitating shyness, or to help people with social anxieties and mood disorders. It's also thought that oxytocin could help people suffering from post traumatic stress disorder. In addition, given that autism is essentially a social communication disorder, it's being considered as a way of helping people on the spectrum as well. And lastly, oxytocin, through its trust-building actions, can help heal the wounds of a damaged relationship — another example of how the mind gets its plasticity.

5. Healing and pain relief

Amazingly, oxytocin can also be used to heal wounds (through its anti-inflammatory properties). Studies have also shown that a rise in oxytocin levels can relieve pain — everything from headaches, cramps and overall body aches. Now, that being said, the trick is to get some oxytocin action while you're in pain — which is not so easy. This is where synthetics can certainly help. Alternately, if you find yourself in physical discomfort, you could always ask your partner for a roll in the hay. So guys, be sure to use this crucial information the next time your significant other declines your advances and tells you she has a headache.


6. A diet aid


Perhaps surprisingly, it can also be used to prevent obesity in some instances. Researchers have observed that oxytocin and oxytocin receptor-deficient mice become obese later in life — and with normal food intake. Scientists believe that the hormone might be responsible for a series of beneficial metabolic effects, both in mice and humans. Moreover, by giving oxytocin-deficient obese mice oxytocin infusions, their weight returned back to normal levels. The mice also showed a reduced glucose intolerance and insulin resistance. This clearly suggests an alternative option for those struggling to keep the weight off.

7. An antidepressant

Oxytocin was first observed to have a connection to depression through its effects on mothers suffering from postpartum syndrome. Researchers found that some new mothers were dealing with depression on account of low levels of oxytocin. In fact, they were able to predict postpartum during the pregnancy if the expectant mother had low levels of oxytocin. Recent studies of blood levels and genetic factors in depressed patients have revealed the potential for treating people with clinical depression, and even anxiety disorders.


8. Stress relief


Not surprisingly, given its ability to alleviate social anxiety and produce feelings of trust, oxytocin has the peripheral ability to reduce stress — which is no small thing when you consider the toll that stress takes on the body. Oxytocin has been observed to reduce cortisol in the body and lower blood pressure. It's also been known to improve digestion, which is often disturbed by high stress levels. Interestingly, oxytocin and the oxytocin receptors have been found in the intestinal tract; it improves gut motility and decreases intestinal inflammation.

9. Increases generosity

In what could be seen as either a good or bad thing, oxytocin has been observed to increase generosity in humans. Evolutionary biologists, particularly those who subscribe to the selfish gene theory, have long struggled to understand why people sometimes share or give away things — often at a personal cost. But several lines of research have connected oxytocin to feelings of empathy. In one study that required persons to share money with a stranger, infusions of oxytocin were shown to make some subjects as much as 80% (wow!) more generous than those on a placebo.


10. It's what makes us human


In other words, all the above. It's clear that we really wouldn't be human without it — we would simply lack the ability to be the social, caring species that we are. Now, it should be noted, however, that, while oxytocin increases in-group trust, it produces the opposite feeling for those in the out-group — so it's not the "perfect drug" some might proclaim it to be. That being said, oxytocin plays a crucial role in forging our ability to spark and maintain relationships, while endowing us with the ability to empathize, trust, and even love one another. Without it, we would be something significantly less than what we are.

So what are you waiting for? Go out and hug someone!

Top image via F-Yeah Tattoos. Inset images via babysweetheartlovestory, blog.icebreaker, zen-lifestyle, TheChangeBlog, TorontoMagicians.