Numerous studies have shown the relationship between the love hormone oxytocin and feelings of affection and bonding between individuals, particularly between mothers and their children and between partners.
A recent study found that men who were given oxytocin believed that their relationship with their mother was closer and more affectionate than other men on the trial who were merely given a placebo. However, the mother/son relationship had to be positive in the first place. Men who had a bad relationship with their mother described the relationship as even worse after being given oxytocin. This led to fears that oxytocin might have a ‘dark side’ and may even make violent criminals more aggressive.
A large scale study has been conducted on Rhesus monkeys to investigate these fears further. Rhesus monkeys are known for their hostility and aggression, but the research study found that oxytocin did indeed make them more social and less aggressive.
It appears that oxytocin truly is the love hormone!