Final answer:
Mental health problems can be more prevalent in certain groups, with evidence suggesting an increase in mental health concerns among the general population, particularly during stressful periods such as the pandemic.
Step-by-step explanation:
Yes, mental health problems can indeed be higher among certain groups, including Canadian military personnel. While the specifics regarding the percentage of Canadian military personnel who reported a mental disorder and the proportion that believed they required mental health services were not provided in the reference materials, we can understand that mental health issues are a concern across many demographics. According to the National Institute of Mental Health, approximately 20 percent of the total adult population in the United States has some form of mental illness or mental disorder. Additionally, during events like the pandemic that began in 2020, the number of Americans seeking help with mental health concerns rose significantly.