Why is it so hard to quit smoking? The answer is simple, Nicotine. Nicotine is a drug found naturally in tobacco, it is highly addictive and over time people become physically and emotionally addicted to or dependent on nicotine.

There are plenty of drugs on the market to help people stop smoking. But around 80 per cent of those who quit relapse within a year. Scientists from Sweden’s Karolinska Institute hope a new vaccine will solve just that problem.

When you inhale smoke, nicotine is carried deep into your lungs, where it is absorbed quickly into the blood stream and carried through your body. As you probably know, it will effects many parts of your body system, for example, your heart, blood vessels, your metabolism and your brain.

There are many drugs in the market that helps you stop smoking, but unfortunately 80% of these people come back to smoking within one year. Scientists from Sweden’s Karolinska Institute hope a new vaccine will solve just that problem. The new vaccine job is to block nicotine molecule form reaching the brain; which makes smokers not getting the kick from the cigarette. And if the drugs succeed to take away that kick, then there is no point in smoking.

Testing started on over 400 ex-smokers in April; ex-smoker would receive the vaccine injection every month for around four months. Then they will be followed over the next year to see how they get on.

Over 4.5 million people die every year from smoking, the race on creating the first vaccine to make smokers stop smoking is still going on. The new vaccine might reach the market in the next 3 or 4 years and hope it succeed because a new statistics showed that by 2020, smoking will kill more persons than AIDS, tuberculosis, maternal mortality, car accidents, suicides and murder do.