Long term use of pain killers dulls the nervous system. This is the reason as to why children and babies respond very fast to Advanced Neurological Acupuncture, as their neuro-system has not yet been compromised.
On the other hand, elderly people who are on multiple medications; they have dulled their own beta-blockers, and the body now relies on this external substance to be consumed in order to make a change. Advanced Neurological Acupuncture still works in these cases, however the length of time it takes to achieve the desired results will be longer, as the body must be retrained, and retaught the fact that it does not have to rely on pharmaceutical drugs to heal itself.
The natural health and vitality of the patient will determine how effective they are in getting over their problem; therefore everyone is an individual case.