How cannabis can be helpful for helath?

Certain high-CBD strains have anti-cancer benefits.

http://www.hightimes.com/read/federal-government-unwittingly-admits-cannabis-kills-cancer

"but after careful inspection, it seems that the federal government is actually supporting a recent study which has determined that marijuana has the power to eliminate cancer cells.

The research, which was conducted by a team of scientists at St. George’s University of London, found the two most common cannabinoids in marijuana, tetrahydrocannabinol (THC) and cannabidiol (CBD), weakened the ferocity of cancer cells and made them more susceptible to radiation treatment. The study, which was published last year in the medical journal Molecular Cancer Therapies, details the “dramatic reductions” in fatal variations of brain cancer when these specific cannabinoids were used in conjunction with radiation therapy.

"We've shown that cannabinoids could play a role in treating one of the most aggressive cancers in adults," wrote lead researcher Dr. Wai Liu, in a November 2014 op-ed for The Washington Post. "The results are promising... it could provide a way of breaking through glioma [tumors] and saving more lives.""