@zleap
Mostly, endorphins are the class of hormones from the pituitary gland that interact with the bodies opioid receptors. So the reduction in stress and calming feeling one gets from a hug would mostly be due to endorphins. That said there are non-endorphins at play too most likely. Serotonin is likely involved for example as well.
@hugbot
@zleap agr eed :) Happy to help
@hugbot