Before I begin, let me take you to 2737 BC. It's been described that throughout this period of time, the initial direct reference was discovered in China in the writings of the Chinese Emperor Shen Nung. The very first use of cannabis merchandise was utilized for psychoactive agents.
In the writings, the focus was mostly on its own capability as a medication for rheumatism, gout, malaria, and funny enough, for absent-mindedness. The significance of medicinal value was focused mainly than the intoxication properties.
Gradually its use spread from China to India, and then to North Africa, and reached Europe as early as AD 500. Marijuana was recorded in United States Pharmacopeia from 1850 till 1942. It had been prescribed for various medical uses such as labor pain, nausea, and rheumatism.
By 1850s to 1930s cannabis began to grow renowned for recreational purposes. Since the intake of this drug increased over time, The Controlled Substances Act of 1970 classified it as a Scheduled 1 Drug. So obviously controversies aroused surrounding the medical use of marijuana.
To make it longer medical-friendly, its active ingredient THC was synthesized in 1966, and eventually accepted by the U.S. Food and Drug Administration in 1985.
A 1999 a U.S. Government sponsored study from the Institute of Medicine found the valuable properties of marijuana in certain medical conditions such as nausea caused by chemotherapy, and wasting due to AIDS. Since 1999, a number of studies have been done to demonstrate that smoked marijuana has pain diminishing consequences.
In 1996, California became the first state to legalize the use of marijuana for medical goals, and approximately 24 of those countries now have some sort of medical marijuana legislation.
Medical benefits of marijuana
You will be amazed to know why studies have been performed on this herb, also for the prefer, here is your listing of 20 medical advantages of marijuana you probably never knew!
1. Slow and stop cancer cells from spreading
It was found from the study, published in the journal Molecular Cancer Research, that Cannabidiol has the ability to stop cancer by simply turning off a gene known as Id-1.  In 2007, researchers in California Pacific Medical Center in San Francisco, reported that CBD may prevent cancer from spreading. The researchers experimented on breast cancer cells in the lab that had elevated level of Id-1, and treated them with cannabidiol.
2.The outcome was quite positive, the cells had diminished Id-1 saying, and so were significantly less aggressive spreaders. In fact, the American Association for Cancer Research has found that marijuana really works to slow down tumor development in mind, breast, and lungs considerately. Prevent Alzheimer's
THC, the active ingredient present in marijuana slows the development of Alzheimer's disease, a 2006 study headed by Kim Janda of the Scripps Research Institute discovered. THC slows the formation of amyloid plaques by blocking the enzyme in the brain that makes them. These plaques kill the brain cells, and possibly lead to Alzheimer's disease.
3. Treat Glaucoma
Marijuana may be used as a treatment for glaucoma, which raises the pressure in the eyeball, injuring the optic nerve and resulting in loss of eyesight. According to National Eye Institute, marijuana lowers the pressure in the eye,
4. Relieve Arthritis