Nicotine is highly addictive. Nicotine provides an almost immediate “kick” because it causes a discharge of epinephrine from the adrenal cortex. This stimulates the central nervous system and other endocrine glands, which causes a sudden release of glucose. Stimulation is then followed by depression and fatigue, leading the abuser to seek more nicotine.

How Laser affects smokers
laser seems, by stimulating the pressure points, to increase the release of endorphine and reverse the nicotine induced chemical changes in body.

Five key steps will help you to quit for good:

1-Get ready to quit by picking a date to stop smoking. Before that day, get rid of all cigarettes, ashtrays, and lighters in your home, car, and workplace. And make it a rule never to let anyone smoke in your home. Write down why you want to quit and keep this list as a handy reminder.

2-Get support and encouragement from your family, friends, and coworkers. Studies have shown you will be more successful when you have help. Let the people important to you in your life know the date you will be quitting and ask them for their support. Ask them not to smoke around you or leave cigarettes out around you.

3-Learn new skills and do things differently. When you get the urge to smoke, try to do something that's different - talk to a friend, go for a walk, or do something you enjoy like gardening or going to the movies. Try to reduce your stress with exercise, meditation, hot baths, or reading. It's helpful to plan ahead for how you will deal with situations or triggers that will make you want to smoke. Have sugar free gum or candy around to help handle your cravings. Drinking lots of water or other fluids also helps. You might want to change your daily routine as well - try drinking tea instead of coffee, eating your breakfast in a different place, or taking a different route to work.

4-Talk to your doctor or nurse about medicines to help you quit. Some people have symptoms of withdrawal when they quit smoking, such as depression; not being able to sleep; feeling cranky, frustrated, nervous, or restless; and trouble thinking clearly. Even though smoking doesn't suppress appetite, you may also feel hungry. There are medicines to help relieve these symptoms. Most medicines help you quit smoking by giving you small, steady doses of nicotine, the drug in cigarettes that causes addiction. Talk to doctor or nurse about which of these medicines is right for you:

nicotine patch: worn on the skin and supplies a steady amount of nicotine to the body through the skin
nicotine gum: releases nicotine into the bloodstream through the lining in your mouth
nicotine nasal spray: inhaled through your nose and passes into your bloodstream
nicotine inhaler: inhaled through the mouth and is absorbed in the mouth and throat, but not in the lungs
Bupropion SR: an antidepressant medicine that helps relieve nicotine withdrawal and the urge to smoke

5-Be prepared for relapse. Most people relapse, or start smoking again, within the first three months after quitting. Don't get discouraged if this happens to you or has happened to you before when you've tried to quit. Remember, many people try to quit several times before quitting for good. Think of what helped you and what didn't the last time you tried to quit - figuring these out before you try to quit again will increase your chances for success. Certain things or situations can increase your chances of smoking again, such as drinking alcohol, being around other smokers, gaining weight, stress, becoming depressed or having more bad moods than usual. Talk to your doctor or nurse for ways to cope with these situations.