Can endorphins be used for blood test?
Of course. According to Popular Health Network, endorphin is an endogenous opioid peptide, which has many physiological functions in human body, including analgesia, immunomodulation and neuromodulation. Endorphin secretion will be affected by many factors, such as exercise, diet, mood and so on. We can observe whether the secretion of endorphins is normal by blood test.