Acetylcholine, the most abundant neurotransmitter in the human body, conveys chemical messages between nerve cells ... nicotine has progressively less of an effect on receptors that release ...

“The results suggested that the nicotine treatment had reduced the cell damage by 25 percent ... develop when 80 to 90 percent of dopamine in striatal nerve terminals is depleted.

What is dopamine? The brain has billions of neurons that transfer messages from one nerve cell to another ... you’d like to change, such as smoking, there are ways to redirect your need for ...