Optimistic people live longer and are less likely to suffer from pain. Sadness and dissatisfaction with life can shorten it by 13 years
Over 90% of serotonin and 50% of dopamine are synthesized in the body being produced in the intestine.
The processes occurring in the midbrain can stimulate or inhibit the processes occurring in the cortex. There is also dopamine, a neurotransmitter that plays a key role in the formation of motivation, healthy habits, and addiction, is synthesized.