Everyone remembers the horrors, tells of "grass". The fact that it causes immediate physical addiction, that is sheer poison that anyone who has ever dragged jamb instantly and forever become a drug addict.

The aim of this propaganda is quite good - to keep young people away from drugs, but good intentions know where the road is paved. Such false information undermining the credibility of the youth to the universally recognized fact of the harm of smoking as such, but also makes young people think about whether you can believe allegations about the dangers of hard drugs and thus pushes to commit a fatal error, often irreparable. Therefore, it seemed to me much more interesting to compare marijuana and tobacco, based not on emotion but on facts. At the same time I have to dispel a few myths practiced as an advocate of marijuana less damage than tobacco, as well as their opponents.

So, compare marijuana with tobacco.

Physical dependence:

Myths tobacco supporters

Nicotine does not cause physical dependence, therefore, can not be considered a drug.
Marijuana causes physical dependence, so unlike nicotine is a drug.
Physiological (physical) dependence - a condition in which separate physiological functions associated with the intake of substances contained in tobacco, marijuana, and other drugs. So, when drug addiction is first achieved a special condition of pleasure associated with the action of the drug to certain receptors in the brain. But the drug does not only act on these receptors, it is certain (chemical) method affects the other systems of the body. As a result, in the absence of the drug the body starts to behave not how he would have behaved in a normal situation. Acute pain sensitivity, blunt drug comes the so-called "break-up", the problem starts with the cardiovascular system, accustomed to constant doping, etc.

Tobacco causes physical dependence. Another question - the severity of the addiction and the rate of its occurrence. In most people, the formation of physical dependence on tobacco takes several years. The duration of withdrawal symptoms depends on the duration and intensity of smoking tobacco. At the same time, physical dependence on tobacco is not strong enough to be able to talk about the inability to get rid of it. But it is accompanied by psychological dependence, which makes the process of giving up tobacco smoking is very painful and difficult. As marijuana, physical dependence it is virtually.

Psychological dependence :

Myths Marijuana supporters

From psychological dependence caused by cannabis is easy to get rid of.
In fact, it is not clear how such a disregard for the psychological dependence. It is a psychological dependence is a major impediment to the cessation of smoking tobacco or marijuana. If physical dependence on tobacco after the cessation takes place in a relatively short period of time, the psychological addiction can last a very long time, then subsided, then amplified in dependence on external factors (eg, stress, typical situations related smoking in the past, etc.) Ceteris paribus, the strength of psychological dependence resulting from smoking marijuana and tobacco are approximately equal. However, for various reasons. Marijuana because of its greater impact on the minds of smoking tobacco due to its greater incidence and more severe behavioral motives related to tobacco use.

Damage caused to the physical health of a smoker :

Myths Marijuana supporters

Marijuana causes smoker's physical health less harmful than tobacco
This is not true. At the conclusion of the British Society pulmonary smoking marijuana is more harmful than smoking tobacco. Since according to research the damage caused by smoking marijuana three times a day is equal to the harm of smoking 20 cigarettes. In addition to nicotine marijuana and tobacco contain the same impurities and toxic components. Marijuana smokers inhale deeply a large amount of smoke and permanently hold their breath before exhaling. This leads to a greater penetration of the body of carbon monoxide and tar. Furthermore, the content of carcinogenic substances in marijuana 50% more than in tobacco.

But it should be borne in mind that the percentage of people smoking marijuana three times a day, the total number of its drug compared to the number of people smoked 20 cigarettes a day is quite inadequate. In other words, if a person smokes seven cigarettes per day (20 / 3-7), thereby it causes your body to the same damage as if he once smoked marijuana. Also note that due to the stronger action of marijuana consciousness which on power (but not the character!) Can be compared with alcohol, its repeated daily use, as in the case of alcohol, prevents many factors, such as the need to perform any work, etc. Therefore, the vast majority of marijuana smokers smoke it no more than once a day (actually even less) and thereby causes damage to the health equivalent of seven cigarettes smoked per day. Given the amount of cigarettes smoked on average per day, preferring to tobacco, this figure does not look too impressive.

Summary :

And marijuana and tobacco cause a very strong psychological dependence. However, unlike tobacco, marijuana causes no physical dependence.
Despite the fact that marijuana is harmful to physical health of the smoker, than tobacco. Especially its use leads to the majority of smokers that the actual damage caused to it, is much lower than the harm of tobacco smoke (in the form of cigarettes, etc.) to most smokers.
The harm caused by smoking marijuana mind a long time (several years) and intensive (at least once a day), its use is greater than the harm caused by tobacco. But, nevertheless, the deviations in the mind are not in most cases a pronounced and irreversible (see. Thomas Lundquist article).
Marijuana is much stronger than tobacco affects the consciousness of the smoker, but this effect is specific, not bearing in most cases, aggressive tone and pose no threat to others.

Conclusion :

From the viewpoint of damage to the tobacco and marijuana smokers are approximately equal. Allegations much more harm than marijuana with tobacco are not baseless.

Thank you for attention
I hope I could help you, I highly recommend not to eat something like that!

P.s Sorry for my bad english