Does ganja cause schizophrenia?
In order to establish that ganja causes schizophrenia, it must be shown to be a necessary cause and a sufficient cause. Harold has used ganja for 20 years. He is a successful businessman with a stable family. He has never been ill. Many Jamaicans like Harold use ganja and never get ill. Mary developed schizophrenia at age 19 while in university. She was a devout Christian. Ganja use is not a sufficient cause for schizophrenia as the majority of persons like Harold who use ganja do not develop schizophrenia. Ganja is not a necessary cause for developing schizophrenia as not all adults, like Mary, who develop schizophrenia use ganja. Ganja is a component cause of schizophrenia: This means that it is only one of several factors that may cause schizophrenia. Other causes of schizophrenia include genetics and brain damage. 2. Ganja increases the risk of schizophrenia in persons who are vulnerable. John has two brothers and an uncle who were diagnosed with schizophrenia. He started using gan
