Schizophrenia affects approximately 24 million people or 1 in 300 people (0.32%) worldwide. This rate is 1 in 222 people (0.45%) among adults (2). It is not as common as many other mental disorders.
An estimated 1% of people around the world live with schizophrenia, a mental illness that affects how you think, feel, and act. The number of new cases per year is about 1.5 per 10,000 people.
With a dedication to ongoing treatment, often beginning with intensive residential care, most individuals can live normal or almost-normal lives. Most patients will get better but still have occasional episodes, but about 20 percent will recover within five years.
What is schizophrenia? Schizophrenia is a complex brain disorder, which affects about one in a 100 or between 150,000 and 200,000 Australians.
The exact prevalence of schizophrenia is difficult to measure, but estimates range from 0.25% to 0.64% of U.S. adults. Although schizophrenia can occur at any age, the average age of onset tends to be in the late teens to the early 20s for men, and the late 20s to early 30s for women.
Schizophrenia involves a range of problems with thinking (cognition), behavior and emotions. Signs and symptoms may vary, but usually involve delusions, hallucinations or disorganized speech, and reflect an impaired ability to function. Symptoms may include: Delusions.
You're more likely to get schizophrenia if someone in your family has it. If it's a parent, brother, or sister, your chances go up by 10%. If both your parents have it, you have a 40% chance of getting it.
Schizophrenia is typically diagnosed in the late teens years to early thirties, and tends to emerge earlier in males (late adolescence – early twenties) than females (early twenties – early thirties). More subtle changes in cognition and social relationships may precede the actual diagnosis, often by years.
Schizophrenia is a brain disorder that affects about 1 in 100 people. It affects men and women equally in all ethnic groups. Symptoms often start between ages 16 and 30 but most often between 18 and 22. It's unusual to develop schizophrenia after age 45.
Doctors also believe the brain loses tissue over time. And imaging tools, like PET scans and MRIs, show that people who have schizophrenia have less “gray matter” -- the part of the brain that contains nerve cells -- over time.
Residual Stage
This is known as the final stage of schizophrenia. These symptoms are very similar to those of the prodromal stage. Patients in this stage are often not seen to be psychotic, but their symptoms shift from positive to negative (i.e. they take something away from the person).
The exact causes of schizophrenia are unknown. Research suggests a combination of physical, genetic, psychological and environmental factors can make a person more likely to develop the condition. Some people may be prone to schizophrenia, and a stressful or emotional life event might trigger a psychotic episode.
In most people with schizophrenia, symptoms generally start in the mid- to late 20s, though it can start later, up to the mid-30s. Schizophrenia is considered early onset when it starts before the age of 18. Onset of schizophrenia in children younger than age 13 is extremely rare.
In this early phase of schizophrenia, you may seem eccentric, unmotivated, emotionless, and reclusive to others. You may start to isolate yourself, begin neglecting your appearance, say peculiar things, and show a general indifference to life.
Highly stressful or life-changing events may sometimes trigger schizophrenia. These can include: being abused or harassed. losing someone close to you.
There is no certain way to prevent schizophrenia. This is because not all of its causes are under your control. Researchers have uncovered several possible schizophrenia causes.
Schizophrenia can be hard to diagnose for a few reasons. One is that people with the disorder often don't realize they're ill, so they're unlikely to go to a doctor for help. Another issue is that many of the changes leading up to schizophrenia, called the prodrome, can mirror other normal life changes.
It is possible to experience hallucinations while being aware that they aren't real. As with delusions, this would require a meta-awareness of the unreality of what appears to be a real experience. Human beings usually rely on their perceptions to tell what's real.
Schizophrenia changes how a person thinks and behaves.
The condition may develop slowly. The first signs can be hard to identify as they often develop during the teenage years. Symptoms such as becoming socially withdrawn and unresponsive or changes in sleeping patterns can be mistaken for an adolescent "phase".
People with schizophrenia have trouble inferring other people's mental states. Eye-gaze direction is a ubiquitous social cue that we use to direct attention and infer what other people are thinking, what their intentions are.
An MRI scan—in which magnetic fields and sound waves are used to create two- or three-dimensional images—may provide a good view of the structure of the brain and rule out schizophrenia by detecting abnormalities that may be causing schizophrenia-like symptoms.
Prodromal stage
It occurs before noticeable psychotic symptoms appear. During this stage, a person undergoes behavioral and cognitive changes that can, in time, progress to psychosis. The early stage of schizophrenia usually involves non-specific symptoms that also occur in other mental illnesses, such as depression.