What impact do endorphins and or serotonin have against adrenaline?
Endorphins have been suggested as modulators of the so-called “runner’s high” that athletes achieve with prolonged exercise. At least 20 types of endorphins are known to exist. These chemicals are produced in the brain (primarily the hypothalamus and pituitary) in response to a variety of stimuli, such as exercise, meditation, and stress. Stress and pain are the two most common factors leading to the release of endorphins. Catecholamines are chemical compounds derived from the amino acid tyrosine that act as neurotransmitters. High catecholamine levels in blood are considered markers for stress. Catecholamines cause physiological changes that help prepare the body for physical activity, e.g., the fight-or-flight response. Some typical effects are increases in heart rate, blood pressure, and blood glucose levels. The catecholamines include compounds such as epinephrine (adrenaline), norepinephrine (noradrenaline), and dopamine. Epinephrine and norepinephrine are secreted by the adrenal
