What's the difference between adrenaline and endorphine?!

What's the difference between adrenaline and endorphine?

are they like melatonin and serotonin?

4 weeks ago
So Adrenaline works as a boost and endorphine works the opposite as relax the body?

adrenaline aka epinephrine is one hormone, endorphins refer to a multiple of neuro chemicals, see the definitions below.

epinephrine /epi·neph·rine/ (-nef´rin) a catecholamine hormone secreted by the adrenal medulla and a central nervous system neurotransmitter released by some neurons. It is stored in chromaffin granules and is released in response to hypoglycemia, stress, and other factors. It is a potent stimulator of the sympathetic nervous system (adrenergic receptors), and a powerful vasopressor, increasing blood pressure, stimulating the heart muscle, accelerating the heart rate, and increasing cardiac output. It is used as a topical vasoconstrictor, cardiac stimulant, systemic antiallergic, bronchodilator, and topical antiglaucoma agent; for the last two uses it is also administered as the bitartrate salt. Called also adrenaline

Endorphin

Endorphins are endogenous opioid biochemical compounds. They are polypeptides produced by the pituitary gland and the hypothalamus in vertebrates, and they resemble the opiates in their abilities to produce analgesia and a sense of well-being. In other words, they might work as "natural pain killers." Using drugs may increase the effects of the endorphins.

The term "endorphin" implies a pharmacological activity (analogous to the activity of the corticosteroid category of biochemicals) as opposed to a specific chemical formulation.

The term endorphin rush has been adopted in popular speech to refer to feelings of exhilaration brought on by pain, danger, or other forms of stress,[1] supposedly due to the influence of endorphins. However, this term does not occur in the medical literature