Which statement regarding schizophrenia is correct?

Schizophrenia is a complex mental disorder that typically presents in early adulthood, usually between the late teens and mid-30s. This period aligns with significant developmental changes and stressors that may trigger the onset of symptoms. Research has consistently shown that early intervention and support can positively influence treatment outcomes, but the onset is primarily observed in young adults rather than children or older age groups.

The other options reflect misunderstandings about schizophrenia. While treatment options have improved, it is not correct to say that the disorder is easily treated due to its complexity and the variability of symptoms. Social influences do play a role in the development and exacerbation of the disorder, contrary to the assertion made in another option. Lastly, symptoms of schizophrenia often become more manageable over time for some individuals, but dysfunctional symptoms can persist and may not necessarily diminish, making the statement incorrect.