Dabbing is a relatively new phenomenon amongst cannabis users. The idea is to receive as much THC as possible while minimizing the negative effects of smoke inhalation. THC from a dab is 90% plus, compared to roughly 20% for burning the flowers themselves. While the vast majority of "dabbers" are using cannabis for recreational purposes, you'd be surprised by the number of folks who use them to battle a variety of very real health issues- from insomnia and migraines, to epilepsy and even some types of cancer.