Because of its properties and effects, marijuana was used in treating a number of diseases, like: insomnia, anxiety, panic attacks, depressions, neuralgias, rheumatism, gastrointestinal dysfunctions, ulcers, cholera, cancer, epilepsy, bronchitis, asthma (because of the property of bronchodilator), and gonorrhoea. It reduces intraocular pressure and because of this fact, it is recommended in treating glaucoma. The anti-spastic and anti-convulsive properties are indicated in cases of epilepsy, multiple sclerosis and spasms. In the case of cancer, cannabis (and especially the oil in cannabis) leads to the loss of states of dizziness and vomit which are specific to chemotherapy. For patients suffering of AIDS and hepatitis, marijuana helps with regaining their weight through increasing appetite and reducing states of nausea and vomiting.
There is a lot of unfounded rhetoric that states smoking pot can cause lung cancer because you're inhaling smoke, like cigarettes. This simply isn’t true. Cigarette smoke causes cancer because the tobacco is radiated whereas marijuana isn’t. In fact, the American Association for Cancer Research has found the marijuana actually works to slow down tumor growth in the lungs, breasts, and brain considerably.
Marijuana is a muscle relaxant and has "antispasmodic" qualities that have proven to be a very effective treatment for seizures. There are actually countless cases of people suffering from seizures that have only been able to function better through the use of marijuana.
Since medicinal marijuana was legalized in California, doctors have reported that they have been able to treat more than 300,000 cases of migraines that conventional medicine couldn’t through marijuana.