High levels of cortisol in children can contribute to developmental delays. True or False?

• A. True
• B. False
• C. Not sure
• D. Both

Answer: (A)

Cortisol is the main stress hormone, and when it stays high over time, it can interfere with how a child’s brain and body develop. Chronic elevation of cortisol keeps the stress response system activated, which can affect brain regions important for learning, memory, and self-regulation—like the hippocampus and prefrontal cortex. That can show up as slower learning, trouble paying attention, difficulties with language and motor skills, and challenges with behavior and emotional control. Cortisol also influences growth and immune function, so long-term stress can have broader effects that contribute to delays in development. Normal, brief spikes in cortisol are part of healthy stress responses, but persistent high levels linked to ongoing stress can lead to developmental delays, making the statement true.