Psychiatric-Mental Health Nurse Practitioner Exam

What percentage of mental illnesses typically appears by the age of 18?

1. 50%

2. 75%

3. 90%

4. 30%

The correct answer is: 75%

The correct answer is that approximately 75% of mental illnesses typically present by the age of 18. Research indicates that many mental health disorders initiate during adolescence and early adulthood. This period is critical, as the majority of mental health conditions, such as anxiety disorders, mood disorders, and behavioral disorders, begin to manifest during these developmental years. Understanding the prevalence of mental illnesses in this age group is crucial for early intervention and prevention strategies. The early signs and symptoms can often be identified during this stage of life, allowing for timely access to mental health care, which can significantly impact an individual’s long-term prognosis and quality of life. The other options do not accurately reflect the empirical data; for instance, 50% or 30% would underestimate the significant burden of mental health issues observed during youth, while stating 90% would overestimate the early prevalence, as not all mental illnesses develop so early in life. Thus, recognizing that 75% accurately encapsulates the onset of mental illnesses facilitates a better understanding of the importance of promptly addressing mental health concerns in young individuals.