Yes there are certain things a smoker needs to follow to increase the ways of quitting. There are persons like Counselors, psychologist and addiction medicine specialist who can assist you in quit smoking. There are measured ways which can increase the chances of quitting. Generally speaking nicotine is the major pharmacological agent in Tobacco, causing chemical and biological changes in the brain. Though less dramatic than heroin or cocaine, the strength of the addiction is just as powerful. It is a reinforcing drug, meaning users desire the drug regardless of the damaging effects. Our body builds a tolerance to nicotine and as a result of it the effects of the drug are reduced and we take in lot more than the toxic levels. Effects of Nicotine are seen with in 10 sec of taking it as it enters the brain by then. It usually causes 1) sudden increase in heart rate and blood pressure, 2) constriction of blood vessels, causing a temperature drop in the hands and feet, 3) muscles relaxation. Other lesser symptoms are nausea, weakness, and abdominal cramps, headache, coughing or gagging. The most severe withdrawal symptoms occur within the first week. The typical withdrawal symptoms are headaches, anxiety or irritability, difficulty in concentration and sleeping, hunger, decreased heart rate and blood pressure, craving for nicotine. Increased appetite or weight gain. These withdrawl symptoms can be answered by the counselor, how to tackle them, he prescribes you certain medicines like varenicline which can increase the chances of quitting. Hence it is advised to see a Counselor.