risks

And yes, my friends, there are many problems associated with use of marijuana, such as the risk of addiction, risk for vehicle crashes, emergency department visits, psychiatric symptoms, poor quality of life, cognitive decline, and the use of other drugs.
Marijuana’s immediate effects include distorted perception, difficulty with thinking and problems solving, and loss of motor coordination. Marijuana use can also cause space and time distortion, delusional thinking, and even hallucinations.
Long–term use of the drug can contribute to respiratory infection, impaired memory, and exposure to cancer-causing compounds. Of major importance among youth who are heavy users of the drug is that its use is linked to increased risk for developing mental illness and poorer cognitive functioning.