Psychosis five times more likely for cannabis users: study

It's wonderful that the understanding of the relationship between the drug and psychosis had advanced this far. However despite the consistent evidence associating cannabis use with psychosis some people still continue to argue that correlation isn't necessarily causation. But this case sounds strong. It is also a fact that psychosis is present to varying degree in mental disorders and other problems may occur concurrently with psychosis such as depression, anxiety, substance abuse and difficulty in sleeping.

no way it's true...otherwise there would be tons of weirdos in Seattle. wait.....

“Compared with those who had never tried cannabis, users of high potency skunk-like cannabis had a threefold increase in risk of psychosis,” she said.

Drinking a liter of vodka a day will also increase the risk of psychosis. Like any drug, too much, too often will have negative effects. Irresponsible use, and using specifically high potency cannabis, are a reflection of deeper issues. Just as the chronic alcoholic has identifiable psychological issues, the chronic high potency cannabis is self medicating for a reason. That reason may well be an identifiable condition that includes psychosis.

They are so many international studies that prove the benefits of this medicinal plant; focusing on the few ( too few side effects), is simply dwelling in ignorance*. To educate is the only way to benefit to mankind : https://www.marijuanadoctors.com/content/ailments/glossary US PATENTS RELATED TO CANNABIS ( marijuana, hemp, weed , etc ) http://www.calgarycmmc.com/cannabispatents.htm NATIONAL CANCER INSTITUTE:

Because cannabinoid receptors, unlike opioid receptors, are not located in the brainstem areas controlling respiration, lethal overdoses from Cannabis and cannabinoids do not occur.[1-4] However, cannabinoid receptors are present in other tissues throughout the body, not just in the central nervous system, and adverse effects include tachycardia, hypotension, conjunctival injection, bronchodilation, muscle relaxation, and decreased gastrointestinal motility.

Although cannabinoids are considered by some to be addictive drugs, their addictive potential is considerably lower than that of other prescribed agents or substances of abuse.[2,4] The brain develops a tolerance to cannabinoids.

Withdrawal symptoms such as irritability, insomnia with sleep electroencephalogram disturbance, restlessness, hot flashes, and, rarely, nausea and cramping have been observed. However, these symptoms appear to be mild compared with withdrawal symptoms associated with opiates or benzodiazepines, and the symptoms usually dissipate after a few days.

Unlike other commonly used drugs, cannabinoids are stored in adipose tissue and excreted at a low rate (half-life 1–3 days), so even abrupt cessation of cannabinoid intake is not associated with rapid declines in plasma concentrations that would precipitate severe or abrupt withdrawal symptoms or drug cravings." source: http://www.cancer.gov/cancertopics/pdq/cam/cannabis/healthprofessional/page6

http://www.safeaccessnow.org/cannabis_safety

http://www.marijuanadoctors.com/content/resources/methods-medicating-cannabis

https://www.marijuanadoctors.com/content/ailments/view/19?ailment=cancer

SAFETY: http://www.safeaccessnow.org/cannabis_safety

“First, you have to remember that most Japanese still believe that Cannabis is a narcotic, and do not realize that it is the same plant as hemp, which was once as much a part of Japanese culture as rice. In a mere half century, MacArthur, with the Marijuana Regulation Law [Hemp Control Act], managed to totally wipe away even the memories of hemp culture, which endured for several thousand years after its beginnings in the Jomon Period.” (Yamada 1995)