Final answer:
The detection of mental health issues can start as early as infancy, although more common diagnoses occur in adolescence and early adulthood. At every developmental stage, from infant to adult, there are signs and changes that can signal mental health concerns, emphasizing the importance of monitoring and early intervention.
Step-by-step explanation:
The early detection of mental health issues can begin at any age, including infancy. While adults and adolescents may exhibit more pronounced signs that can be clearly identified and diagnosed, children and even infants can also show signs of potential mental health concerns. It is important to understand that developmental stages play a critical role in identifying and addressing these issues.
For instance, infants display various reflexes which doctors assess for normal development. Parenting styles and attachment in infancy are crucial for a child's healthy psychosocial development. As children grow, changes in physical, cognitive, and social behaviors are monitored to flag any concerns. During adolescence, rapid cognitive development takes place, and it's important to recognize deviations that may indicate mental health challenges.
Early adulthood is generally when mental health issues are more commonly diagnosed, as individuals are more capable of expressing their thoughts and feelings, and engage with complex social and professional environments that can trigger or exacerbate mental health problems. However, signs can definitely be present earlier, and early detection in children and adolescents is crucial for timely intervention.