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.
Serotonin is probably the most important neurotransmitter in the brain because it naturally and effectively treats depression, anxiety and insomnia, as well as symptoms such as fatigue, irritability, agitation, anger, aggression, hostility, impulse dyscontrol and a variety of other mood issues.