Medical Marijuana Information

Introduction to the Endocannabinoid System

As you read this review of the scientific literature regarding the therapeutic effects of cannabis and cannabinoids, one thing will become quickly evident: cannabis has a profound influence on the human body. This one herb and its variety of therapeutic compounds seem to affect every aspect of our bodies and minds. How is this possible?

At our integrative medical clinics in Maine and Massachusetts, my colleagues and I treat over 18,000 patients with a huge diversity of diseases and symptoms. In one day I might see cancerCrohn's diseaseepilepsychronic painmultiple sclerosis, insomnia, Tourette's syndrome and eczema, just to name a few. All of these conditions have different causes, different physiologic states, and vastly different symptoms. The patients are old and young. Some are undergoing conventional therapy. Others are on a decidedly alternative path. Yet despite their differences, almost all of my patients would agree on one point: cannabis helps their condition.

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Marijuana Strains & Cannabis Genetics

Welcome to the original Marijuana Strain Library, where you will find detailed information on cannabis strains, including strain origins and genetics, strain-specific grow tips, smoke reports and descriptions of the effects, and more.

Marijuana strains are either pure breeds or hybrid varieties of Cannabis, typically of the species Cannabis Indica or Cannabis Sativa. Large variety of weed strains are continually developed to highlight a specific combination of properties of the plant or to establish marketing differentiation. Strain names are typically chosen by their growers, and often reflect properties of the plant, such as taste, color, smell, or the origins of the strain.

Qualifying Conditions for Medical Marijuana by State

Although cannabis remains illegal on the federal level in the United States, some individual states have legalized cannabis for valid medical purposes (and two states, Washington and Colorado, have legalized cannabis both medically and recreationally). 

Here's a list of which states authorize medical marijuana for valid, qualified patients. Each entry includes a link to the state's qualifying conditions, as well as a rundown of which medical conditions and symptoms must be verified by a physician in order to get authorized as a valid medical marijuana patient. Please note that some states allow physicians to approve other medical conditions not listed on a case-by-case basis, so check with your doctor. Please be aware that Leafly’s crowdsourced strain data does not constitute professional medical advice.