Various studies place the average age of cataract surgery patients at between 70 and 73. More Info: The incidence of cataracts among Americans is relatively high.
Serotonin. Serotonin is an inhibitory neurotransmitter involved in the regulation of mood, anxiety, libido, compulsivity, headaches, aggression, body temperature, eating disorders, social anxiety, phobias, sleep, appetite, memory and learning, cardiovascular function, muscle contraction, and endocrine regulation.
Living With Schizophrenia. Serotonin and Schizophrenia. The neurotransmitter serotonin is known to influence a number of important brain functions, including perception, mood, sleep, appetite, cognition, and pain. Most antidepressant medications work by increasing serotonin levels in the brain, and serotonin has been implicated in a number of other mental health disorders as well.