CBD is the abbreviation for cannabidiol, the active ingredient from the hemp plant. It is not psychoactive.
THC is the abbreviation for tetra hydra cannibinol, which is the active ingredient in the marijuana plant. It is psychoactive.
Healing benefits have been reported for both compounds, and a great deal of clinical research has been done which scientifically supports those claims.
Sadly, the culture is having to plow through decades worth of negative impressions and government propaganda to discover the positive aspects of these natural organisms.
That’s right.
It was once a common treatment in America.
http://www.druglibrary.org/mags/cannabisindicainpharmaceuticals.htm