What are happy hormones? Happy hormones are chemical messengers present in the brain that promote positive feelings like pleasure, happiness, and even love. A feeling of happiness and pleasure is promoted by a group of hormones including dopamine, serotonin, oxytocin, and endorphins.
According to researchers, this reaction to tear up is likely linked to the release of oxytocin, nicknamed the "love hormone", due to its connection with bond-building.