In some nations, cannabis or weed is categorized as drugs, although not proven that the user becomes addicted, different from other types of drugs that use synthetic substances or semi-synthetic and harm brain cells, which are already very visible give dangers for the human race. One product that you can trust is herbal incense that can be found through http://k2herbstore.com.
In the opinion of some of the negative effects of cannabis, in general, is that wearer will be dull and the brain will decrease in thinking. Despite, this is still a topic of controversy, because it is not completely accepted upon by some particular society that supports medical marijuana and marijuana in common. Besides claimed as a pain reliever, and treatments for specific diseases (including cancer), many are also those who claim the surge of creativity in thought and in the work (especially on the artists and musicians). Cannabis, until now, has never been proven as a cause of death and addiction. In fact, in the past considered as an exceptional plant, where nearly all the elements available to it can be used for various purposes.