what is the most common symptom of schizophrenia
Deficits in cognitive abilities
title: Schizophrenia text: Schizophrenia Schizophrenia is a mental disorder characterized by abnormal behavior, strange speech, and a decreased ability to understand reality. Other symptoms include false beliefs, unclear or confused thinking, hearing voices that do not exist, reduced social engagement and emotional expression, and lack of motivation. People with schizophrenia often have additional mental health problems such as anxiety, depressive, or substance-use disorders. Symptoms typically come on gradually, begin in young adulthood, and in many cases never resolve. The causes of schizophrenia include environmental and genetic factors. Possible environmental factors include being raised in a city, cannabis use during adolescence, certain infections, parental title: Schizophrenia text: might play a role in the pathology of schizophrenia. Schizophrenia Schizophrenia is a mental disorder characterized by abnormal behavior, strange speech, and a decreased ability to understand reality. Other symptoms include false beliefs, unclear or confused thinking, hearing voices that do not exist, reduced social engagement and emotional expression, and lack of motivation. People with schizophrenia often have additional mental health problems such as anxiety, depressive, or substance-use disorders. Symptoms typically come on gradually, begin in young adulthood, and in many cases never resolve. The causes of schizophrenia include environmental and genetic factors. Possible environmental factors include being raised in title: Schizophrenia text: years. This is primarily because of its association with obesity, poor diet, sedentary lifestyles, and smoking, with an increased rate of suicide playing a lesser role. Antipsychotic medications may also increase the risk. These differences in life expectancy increased between the 1970s and 1990s. Schizophrenia is a major cause of disability, with active psychosis ranked as the third-most-disabling condition after quadriplegia and dementia and ahead of paraplegia and blindness. Approximately three-fourths of people with schizophrenia have ongoing disability with relapses and 16.7 million people globally are deemed to have moderate or severe disability from the condition. Some people do recover title: Schizophrenia text: as long-term unemployment, poverty and homelessness, are common. The average life expectancy of people with the disorder is ten to twenty five years less than for the general population. This is the result of increased physical health problems and a higher suicide rate (about 5%). In 2015 an estimated 17,000 people worldwide died from behavior related to, or caused by, schizophrenia. Individuals with schizophrenia may experience hallucinations (most reported are hearing voices), delusions (often bizarre or persecutory in nature), and disorganized thinking and speech. The last may range from loss of train of thought, to sentences only loosely connected in title: Schizophrenia text: similar rates worldwide, its frequency varies across the world, within countries, and at the local and neighborhood level. This variation has been estimated to be fivefold. It causes approximately one percent of worldwide disability adjusted life years and resulted in 20,000 deaths in 2010. The rate of schizophrenia varies up to threefold depending on how it is defined. In 2000, the World Health Organization found the percentage of people affected and the number of new cases that develop each year is roughly similar around the world, with age-standardized prevalence per 100,000 ranging from 343 in Africa to 544 in Japan