Final answer:
Nicotine replacement therapy is the least successful method of quitting smoking.
Step-by-step explanation:
The LEAST successful method of quitting smoking is Nicotine replacement therapy. According to the information provided, around 90% of people who try nicotine replacement therapy end up smoking again within 12 months. While it may temporarily lessen withdrawal symptoms, it does not seem to be an effective long-term solution for quitting smoking.
Nicotine replacement therapy (NRT) is a widely used approach to help people quit smoking or using other forms of tobacco. The primary goal of NRT is to provide controlled doses of nicotine to reduce withdrawal symptoms and cravings, allowing individuals to gradually break free from the habit of smoking. NRT is available in various forms, and its use is generally considered safer than continuing to smoke.