It stimulates the pituitary gland, located at base of brain, which makes secrete endorphin and dopamine which are hormones of the wellbeing, those makes you feel well when you smoke a cigarette or when you eat something good.
Some companies say they have 100% of success.That is false !
And they charge between $500 to $800, if it works or not.
The real rate of success is approximately 80%.
For some, it is like a magic wand,
they smoked 2 packages per day and it is as if they had never smoked.
Others succeed very well with the Laser but by putting an effort at it.
Unfortunately, approximately 20% do not reach that point.