Is there a difference between prana and endorphins?
I don’t really know anything about prana, but I understand it to be a spiritual energy-type force, comparable to ki/chi. I don’t know how it ‘works’. However, endorphins are chemicals produced in the body that can be isolated and observed in laboratory conditions, which act on the brain to reduce sensations of pain and provide a mild euphoria as a survival tactic. I’m fairly sure most of that cannot be said about prana.