Schizophrenia symptoms can range from mild to severe and include positive, negative, and cognitive symptoms. Positive symptoms refer to psychotic behaviors like hallucinations and delusions. Negative symptoms impact emotions and functioning, like lack of facial expressions or motivation. Cognitive symptoms make it difficult to care for oneself or work due to impaired decision making and attention. While genes may play a role, environment before birth can also influence risk. Standard treatment includes antipsychotic drugs, but natural supplements can help reduce side effects like liver toxicity or involuntary movements.