Cannabis is an arkanoid extracted from some particular plants. For its sedating effect on human brain, it is often used as a recreational drug.
In most countries, cannabis use is prohibited by the government because of its high level of dependency. However, there is controversy about its risk for human health. Some states in Canada and Europe have legalized cannabis use not only for a medical purpose but also for recreational use.
Recently, a cohort study with a large sample size about longitudinal influence of cannabis use was published. According to the authors, chronic cannabis exposure causes only periodontal diseases. In spite of previous ideas that cannabis is a dangerous substance, it was not proven that cannabis destroy your physical health so seriously.
The Guardian: Study says long-term pot use causes poor gum health – but not much else
In this study, several symptoms and lab data of the participants were examined multiple times for more than a decade. As a result, there was no difference detected between chronic cannabis users and people who were abstinent. The influence of major Potential confounders such as tobacco use were excluded in the process of statistical analysis.
JAMA Psychiatry: Associations Between Cannabis Use and Physical Health Problems in Early Midlife A Longitudinal Comparison of Persistent Cannabis vs Tobacco Users
This study did not evaluate the mental status of the participants. Therefore, it is not said that cannabis use is not harmful at all. It is noteworthy that cannabis was shown to have scarce effect on physical function adversively. Nonetheless, I believe cannabis use is regulated by the authority because some users get psychiatrically sick with a serious degree.
On the other hand, this result will encourage medical practitioners who are considering medical use of cannabis. Particularly for anesthetic region and palliative care, cannabis may deserve to be utilized because in such cases psychological adversities may not be problematic. I hope the protocol of cannabis use for proper purpose will be discussed.