When a mother sniffs a babies head she sets off the same receptors in her brain that go off when someone does heroin or cocaine.
Oxytocin is the love hormone and is released the most during orgasm, childbirth, and breastfeeding.
It is also released when feelings of love are expressed, this can be through puppy snuggles, cuddles with friends and family, sharing food, holding hands, etc.
The level of oxytocin released from sniffing a baby can make a person feel euphoric, almost like they used drugs.
The benefits of oxytocin are incredible and have lead me to be a bit of an oxytocin addict, and just an overall lover of oxytocin in general! Luckily my job allows me to be surrounded by lots of oxytocin inducing situations!