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The risk is higher with frequent and heavy use, use of high-potency products, and starting at a young age. Cannabis-induced psychosis can be a temporary reaction or, in vulnerable individuals, a sign that leads to a persistent psychotic disorder.
Factors that increase risk
Frequency and potency: Daily and frequent use, especially of high-potency cannabis, is linked to a higher risk.
Age: Starting to use cannabis during adolescence is associated with an increased risk of developing mental health problems, including psychosis.
Genetic vulnerability: A family history of mental illness, particularly schizophrenia or other psychotic disorders, significantly increases the risk.