Gaining popularity as the primary therapeutic cannabinoid for a variety of diseases, specifically autism as well as epilepsy and other nerve-related conditions, cannabidiol is generally the second-most common cannabinoid found in cannabis, after THC. It is becoming highly sought after despite being nearly bred out of modern cannabis in the hunt for the highest THC strains; many breeders now pride themselves on their CBD-to-THC ratios instead. Traditionally, hemp varieties have varying amounts of CBD but almost no THC.