Cannabis use significantly increases the risk for incident psychotic symptoms in individuals with no prior history of psychotic experiences.
In persons with evidence of psychosis, cannabis use increases the persistence of these symptoms, according to researchers from the University of Maastricht in The Netherlands, who have done much of the existing work in the area of cannabis and psychosis.
It has been known for many years that persons with schizophrenia or other psychotic illness use more cannabis than the general population, and other work has shown that individuals using cannabis during adolescence and early adulthood have a higher risk of developing psychotic symptoms. It remains unclear, however, whether the association between cannabis and psychosis is causal or whether an underlying genetic predisposition for psychosis may prompt cannabis use as a way of self-medication. A second issue is whether cannabis impacts on persistence rates of psychosis and which biological mechanisms may underlie this process.
Read more Cannabis use Increases Psychosis Risk.
Today a full 16 percent of the U.S. population is dependent on alcohol, nicotine or other drugs. Another 27 percent of the general population engages in use of these substances in ways that put themselves and others at risk, including underage and adult excessive drinking, tobacco use, and misuse of pain relievers, stimulants and depressants. For a staggering 43 percent of the nation, then — nearly every other American — addiction and risky substance use are a matter of public health.
Addiction is America’s number one health care and health cost problem. Approximately 30 percent of our federal and state health care spending is attributable to this disease. Across all government spending, the total financial cost is nearly $500 billion annually.
The extent of human misery is incalculable.