Smoking is the habit where burned tobacco or cannabis is inhaled. Smoking is mostly practiced for recreation purposes. Smoking mainly involves smoking of cigarettes. Other methods that are employed for smoking tobacco include use of pipes as well as cigars. Smoking is considered as the most common method of recreation drug use. Tobacco smoking is considered as the leading method of smoking. Other forms of drugs that are also smoked include cannabis and opium. The habit of smoking is approximated to have started as early as 5000BC and was practiced by different societies across the world. Smoking in early generations was usually being done for religious ceremonies, cleansing rituals as well as offerings to deities. Nowadays, people smoke mainly for recreation reasons. There are many reasons why people smoke nowadays. However, these reasons can be divided into three main categories; psychological social, physical and cultural reasons. The physical causes that trigger smoking concern the human body. Since nicotine that is contained in cigarette is an addictive substance, the bodies of those who smoke feel the urge to take it in as it has a calming effect. In many cases, such people smoke whenever they feel jaded lonesome or anxious. Just a little amount of nicotine is known to make the body of the smoker get energized and improve attentiveness when absorbed by the lungs or intestines. The calming as well as the stimulating effect that accompanies smoking tobacco is linked to the nicotine present in tobacco that stimulates the brain and some nerves that increase the heart rate, blood pressure subsequently, increasing respiration. Cultural Influences In many cases, the media which includes the newspapers, television and radio stations has associated smoking to glamour pleasure and adventure. As a matter of fact, most classic movies present smoking as positive and strong cultural images. Moreover, we are all subject to advertising that intentionally upholds the habit of smoking and makes positive relations with brands. Unfortunately, these images do not show the negative effects of smoking (Psychological Effects of Smoking 3). Social Influences On the other hand, social influences are highly attributed with peer pressure which is a social ill that is hard to defy. When one has a friend who smokes, he/she is likely to be influenced into the habit if not careful. Consequently, it becomes very hard to quit the habit as it may seem awkward as it may be seen as condemnation of their routine. As a matter of fact, smoking strengthens the friendship between smokers. Psychological causes There are various psychological reasons that can lead to smoking. For instance, the universal desire for expression is a major reason why some people smoke. Smokers claim that smoking of cigarettes helps in enhancing one’s mood. Some studies indicate that it is true that smoking of cigarettes causes some calming effects in additional to stimulating effects. The effects of cigarettes smoking varies with the amount of nicotine present in the blood stream. Most smokers have realized that the effects of smoking cigarettes depends on the quantity of nicotine present in the blood stream. Subsequently, smokers either take shorter or longer puffs in order to realize the desired effects. Smoking is associated with a feeling of euphoria, calmness as well as a perception of performance enhancement. Studies show that smoking really causes improvements in performance. The enhancement in reaction and processing time after smoking cigar