Quitting smoking is difficult for many people, and a doctor can help when it comes to making decisions such as whether nicotine replacement or drug therapy is needed. Cigarettes are considered the 7-second problem solvers because it only takes that long for them to affect a human body. From the first puff into the lungs until the chemicals reach the brain a few seconds later, cigarettes begin to take effect immediately, supposedly helping with problem solving, depression and anxiety.
Smoking is a physical addiction and a behavioral addiction.
A person is born with nicotine receptors located in the brain and other areas of the body. Even a non-smoker has them. However, these receptors increase in number when a person begins to smoke. Identifying behavioral habits that lead to smoking is the first step to quitting. For instance, some people will smoke when they get in a car and others need to smoke after waking up in the morning.