Marijuana doubled in twelve years in the US. 

The estimated adult consumers of marijuana figure doubled in the US between 2001 and 2013, reaching 9.5% of the population. As is the case with alcohol, many individuals who consume become addicted. the attitude and social perception and the legal treatment to this drug you are changing. In fact, there are 23 states where medical use is regulated and allowed cannabis, and there are four states where recreational use is allowed.

The authors of the study, managed data on prevalence rates of cannabis use and rates of disorders among consumers United States. the prevalence of marijuana rose from 4.1% of the adult population in 2001 to 9.5% in 2013.

The increase was particularly pronounced among women and among blacks, Hispanics, and Southerners, and among individuals at the age of 45-64 years. The rate of dependence or addiction also increased from 1.5% to 2.9% in the same period. This means that 6.8 million Americans abuse of this substance. However, disorders associated with consumption fell 30% consumer (35.6% in 2001).

The study concludes that “while many citizens think that should end the ban on recreational use, this and other research suggests the need for caution and implement a public education about the potential risks of marijuana use, including the danger of falling in addiction, although, as with the  spirit , many individuals may use marijuana without becoming addicted. However, the high risk of resulting disorders (30%) indicates that we must find a balance between use in therapies medical and recreational use. “