Marijuana

Marijuana

Marijuana has been used as an agent for achieving euphoria since ancient times; it was a spiritual and religious trigger at the time. It changed to be used in India and Persia for leisure and recreational purposes. Humans have used marijuana, whose botanical name is cannabis, for thousands of years. Marijuana refers to the dried flowers and subtending leaves and stems of the female cannabis plant. It was classified as an illegal drug by many countries in the 20th century. It became illegal because of misuse and overuse and this was featured and high lightened by the 6os and 70s, during the hippy movement, where the use of recreational drugs widespread, and post Vietnam War. In most of the countries and cities marijuana is still considered as a “hard drug” where in some exceptional countries, the marijuana is legal.

Affects of Marijuana on Human Body

The most important and harmful effect of marijuana is on the human brain cells and chemistry. Based on brain scans, the study shows that the hippocampus volume was 12 per cent smaller and the volume was 7 per cent smaller in men who were heavy users compared to non-users (Dunham, 2008). Therefore, marijuana consumption affects the capacity of two major brain structures by reducing their optimal performance in a significant way. Users will experience loss of concentration, short-term memory impairments, difficulty in focusing on verbal learning tasks, like remembering a list of 15 words, and they will more likely exhibit mild signs of psychotic disorder (Dunham, 2008).

Study of cannabinoids in recent years has led to a surprising discovery. Researchers, for example, found in the brain of an entirely new signaling system, the existence of which 15 years ago no one suspected. Understanding the mechanisms of its activity could lead to new treatments for anxiety, pain, nausea, obesity, brain injury, and many other disorders. 

Another important effect on human body is effect on the lungs and respiratory tract (Tashkin, 1997). Chronic inhalation of cannabis is associated with acute and chronic respiratory symptoms, already in young adults. A study reveals that chronic smokers of marijuana have many acute bronchitis or chronic tobacco smokers. The symptoms are much more common among marijuana smokers than non-smokers, chronic cough (18% vs. 0%), chronic phlegm (20% vs. 0%), wheezing (25% vs. 3.5%), bronchitis acute (13% vs. 2%).  This disparity is partly explained by the difference in inhalation seal against the cigarette inhalation delivers on average twice as much smoke, depth of inspiration is third largest, duration of inspiration is four times greater. In addition, marijuana is most often smoked without a filter, allowing the absorption of 50% more carcinogenic substance. The inhalation of cannabis increases more than five times compared to smoking.THC affects the nervous system not only in the respiratory tract but also in the cardiovascular system, which is at risk as well. One study has indicated that during the first hour post marijuana a person is 4 times more likely to have a heart attack (Kershaw, 2009).

The third and most important reason for which marijuana is considered ...