Getting problems finding a medical marijuana card service in New York ? Here is the solution to all your problems. What is medical marijuana? Medical marijuana uses the marijuana plant or chemicals in it to treat diseases or conditions. It's basically the same product as recreational marijuana, but it's taken for medical purposes. The marijuana plant contains a variety of different chemicals called cannabinoids. Each one reacts differently to the human body. Delta-9-tetrahydrocannabinol (THC) and cannabidiol (CBD) are the main chemicals used in medicine. THC also produces the "high" people feel when they smoke marijuana or eat foods containing it. According to various researches, the medical use of marijuana started around 5000 years ago in Romania. Steadily which spread across the globe and now it is being used in almost every country for the treatment of various diseases. In 1996, California became the first state to permit legal access to and use of botanical can