What are the benefits, and that the damage from marijuana?

From year to year more and more countries of the world loosens the laws governing the cultivation, sale and consumption of marijuana. Supporters of legalization point out only its benefits, but opponents only harmful. But how much marijuana is really good for health, and how much harmful?

There is no possibility of overdose - First of all it should be noted that the marijuana proven much less harmful than legal alcohol. The possibility of an overdose of it practically does not exist.

The healing properties known for centuries - Some medicinal properties of marijuana were discovered in another 2700 years BC in China, and as a medicine was used by the ancient Greeks and Egyptians.

Relieves pain - study from 2011 found that relieves pain and inflammation in rheumatoid arthritis, but also relieves the symptoms of multiple sclerosis and significantly reduces pain and tremors caused by Parkinson's disease.

Treating Glaucoma - Research in the 1970s showed that a key ingredient in marijuana, delta-9 tetrahydrocannabinol (THC), reduces intraocular pressure by about 25 percent.

Positive effect on PTSD - Some studies conducted among war veterans showed that marijuana relieves the symptoms of PTSD.

Does not reduce, but improves lung function - Extensive study presented in 2012 in the journal "Journal of the American Medical Association" found that marijuana does not cause weakening of lung function when consumed in moderation, but should, on the contrary, can be improved.

It relieves seizures - University of Virginia published in 2003 a study according to which ingredients of cannabis, such as THC act on cells in the brain responsible for relaxation and relieves seizures.

Positive effect on Alzheimer's and Parkinson's disease - Study "Scripps Research" Institute conducted in 2006 found that THC prevents the accumulation of amyloid deposits in the brain that are associated with Alzheimer's disease.

Blocking the spread of breast cancer - "California Pacific Medical Center" in San Francisco announced that it would CBD could help prevent the spread of breast cancer.

Positive effect on sufferers of AIDS - A University of Colombia in 2007 found that inhalation of cannabis increases the appetite of people with HIV / AIDS.

It relieves inflammation in the intestines - A study conducted in 2010 at the University of Nottingham found that THC and CBD alleviate intestinal inflammation and Crohn's disease.

Reduces obesity - "American Journal of Medicine" published a study which showed that marijuana smokers have a better response to the consumption of sugar metabolism.

It can be good, but also bad for anxiety - Research conducted at Harvard University found that marijuana acts as a sedative and leads to a reduction of anxiety.

Cannabis and schizophrenia - Some studies have shown that marijuana can cause psychotic states and panic attacks and act as a trigger for schizophrenia. But according to a comprehensive study, the number of patients with schizophrenia in the United States did not increase after the popularization of these drugs sixties, on the contrary - it seems to be reduced slightly.

Increases the risk of heart attack - For a few minutes after smoking marijuana heart rate can increase by 20 to 50 per minute.

Often smoking can cause lung cancer - Some research has shown that the risk of regular marijuana smokers suffer from cervical, head and lungs more than in nonsmokers.

Poor memory and IQ - Frequent marijuana smoking is associated with changes in the hippocampus of the brain, and the weakening of long-term memory.

Weak immune system - Some studies have found that marijuana weakens the immune system, or to inhibit the activity of cells of the immune system