Nicotine is one of the organic components present in tobacco and this plant, in turn, is the main ingredient in cigarettes. Nicotine, belonging to the group of alkaloids, is a brown substance that is not visible until it is exposed to oxygen.

Nicotine is a powerful stimulant, which acts as an anabolic when it reaches the brain. The composition of the cigarette comprises between 1.5 and 2.55 g of nicotine, which represents a strong dose of nicotine that enters the body (almost 80% of the net content) for each cigarette that is smoked.

When the commercialization of the cigarette began, the publicity that was given to the product was endorsed by psychiatrists and psychologists who asserted that the intake of nicotine helped relaxation and was an adjuvant in the treatment of depressive and stress disorders. Today, given the high mortality rate due to respiratory tract diseases such as lung cancer, the WHO (World Health Organization) began an awareness campaign to reduce cigarette consumption since, because it contains nicotine, it is highly addictive and together with the other components of the cigarette produce many diseases.

Addiction throughout the world has turned nicotine into a dangerous vice, highly harmful not only for those who consume it (active smokers) but also for those around them (passive consumers) who inhale the residual tar in the smoke.

The use of nicotine in cigarettes is perhaps the most popular that is known, however, today it is being added to energy drinks with the aim of achieving an addiction to them. These drinks, rich in protein content, stimulate the body through the use of nicotine, providing vigor and enthusiasm for better performance in the physical activity that is being carried out. Although they are not considered a drug, and they are not as harmful to the body as cigarettes, nicotine-containing energy drinks represent a considerable addictive area of ​​products with this alkaloid, mainly in young people, who are the ones who consume it the most.