Endorphins are brain chemicals known as neurotransmitters (transmit electrical signals within the nervous system) that are found in the pituitary gland and other parts of the brain and nervous system. Endorphins interact with our opiate receptors to reduce our perception of pain and act similarly to drugs like morphine and codeine (without the addiction or dependence)
Along with decreased feelings of pain, endorphins lead to feelings of euphoria, modulations of appetite, release of sex hormones and enhanced immune response.
Take away point - endorphins make you happy :)
