When someone hugs us, the stimulation of c-tactile afferents in our skin sends signals, via the spinal cord, to the brain’s emotion processing networks. This induces a cascade of neurochemical signals, which have proven health benefits. Some of the neurochemicals include the hormone oxytocin, which plays an important role in social bonding, slows down heart rate and reduces stress and anxiety levels. The release of endorphins in the brain’s reward pathways supports the immediate feelings of pleasure and wellbeing derived from a hug or caress.
