Because you often see in some advertisements or health advice that exercise is good for people's physical and mental health. The reason is that exercise can make our brain produce dopamine and feel happy. Therefore, the more you exercise, the happier you are. Those who like fitness really love sports.
Dopamine is a neurotransmitter, which belongs to the reward substance given by the brain and transmits the information of happiness and excitement. In order to pursue this kind of brain reward, people have adopted many methods.
Healthy ways are: making friends, exercising, tasting delicious food, etc. Unhealthy ways are related to addiction, such as gambling, drug abuse and alcoholism. ?
Endorphins can also be the substance we pursue, especially when we feel pain. It's an analgesic that comes with our bodies. It is a morphine-like biochemical compound hormone secreted by our pituitary gland, which can combine with our morphine receptor to produce analgesic effect and euphoria similar to morphine injection.
It is because both dopamine and endorphins can make people feel good, so some people take external methods in order to experience this feeling quickly and strongly. One of the most important points is poisoning.
Normal people can make their brains secrete dopamine and endorphins through their hobbies or sports, which makes us feel happy.
Drug addicts are accustomed to rapid and large-scale drug stimulation, and will only pursue more drug doses, so it is difficult to turn back. The brains of drug addicts will be "eroded" by drugs Drugs will change the nerve transmission in our brain and break the ecological balance of the brain.
Describe it with an easy-to-understand metaphor:
If we compare our brains to little girls who love apples; Comparing the brain nervous system to an apple tree, the picture of drugs occupying our nervous system is like this:
The little girl (brain) likes eating apples very much, which brings her a happy satisfaction. In normal times, the apple tree (nervous system) growing in the brain can adjust the apple yield according to the little girl's blood sugar.
But the little girl thinks that the apple tree is too conservative to produce enough apples to meet her own needs. So the little girl decided to graft poisonous berries (medicine) on the apple tree.
Poisonous berry branches can produce sweeter fruits than apples. They grow wildly on apple trees and destroy the ecology of apple trees. No matter what the blood sugar level in the little girl's body is, the poisonous raspberry branches are crazy. The little girl felt very satisfied, and the happiness brought by poisonous berries greatly exceeded that of the original apples.
Apple trees are dying out, and nutrients are completely occupied by poisonous raspberry branches.
At this time, drugs are poisonous berries, and drug addicts need to constantly replenish drugs to maintain the growth and fruit of poisonous berries. If the drug supply is interrupted, the poisonous berries will shrink and never bear fruit again.
When the little girl can't eat poisonous berries, she feels sick all over. She has only one thought, that is, to find medicine and make it up.
George Cobb Cobb, a neuropsychopharmacologist, said: With the continuous use of drugs, the reward system of the brain is defective and the stress system becomes sensitive. This means that you need to use more and more drugs to get the pleasure you want, but your brain will become more sensitive to stress.
This will completely plunge your life into an endless negative cycle.
So, enjoy a good life and produce endorphins and dopamine in a healthy way.