A few notes about Neurotransmitters.
LEF has some very interesting things to say about neurotransmitters.
Just because we cannot test for them, doesn’t mean we cannot make assumptions about levels.
Neuro’s are similar to testosterone in that, in the even of aging, or some sort of pathology, levels drop.
In a sense, the brain becomes hypo-neuro, meaning levels of neurotransmitters decline, just like the testes production of T declines as well.
We do not necessarily need to test for levels because symptoms of low levels are usually evident. We can make safe assumptions about neurotransmitter levels based on symptoms, behaviors, etc.
In LEF’s disease prevention handbook (I recommend you all to get, and read), they have some excellent things to say about cognitive behavior, and specifically, ADD and ADD like behavior.
What is interesting is how common behaviors are associated with low T. And guess what? There are common behaviors that are associated with low Neurotransmitters. There is some evidence that people with ADHD do not produce adequate quantities of certain neurotransmitters, among them dopamine, norepinephrine, and serotonin. Some experts theorize that such deficiencies lead to self-stimulatory behaviors that can increase brain levels of these chemicals
There may also be some structural and functional abnormalities in the brain itself in children who have ADHD. Evidence suggests that there may be fewer connections between nerve cells. This would further impair neural communication already impeded by decreased neurotransmitter levels. Evidence from functional studies in patients with ADHD demonstrates decreased blood flow to those areas of the brain in which �??executive function,�?? including impulse control, is based. There may also be a deficit in the amount of myelin (insulating material) produced by brain cells in children with ADHD