Have such an effect. Morphine substances, including opium, * * * and so on, can make people feel happy for a period of time after use.

Dopamine is a neurotransmitter whose function is to transmit information of excitement and pleasure. Smoking and drug abuse can increase the secretion of dopamine, which makes people feel happy and excited. And people's addiction to something is mainly due to dopamine.

Endorphin, also known as endorphin or endorphin, is a biochemical synthetic hormone produced by the body, which has a similar effect to morphine. It can be combined with morphine to produce the same pain and pleasure as morphine.