Studies that lasted from one to five years showed that 25% of smokers who used REST were able to stop smoking. If smokers also used other ways to stop smoking along with REST (like changing their behaviors), 50% were able to stop smoking. When smokers used REST and went to weekly support groups, 80% were able to stop smoking. (To compare, only 5% of smokers who use only a nicotine patch are able to stop smoking.)