“Teenagers and young adults have the highest rates of suicide compared to other ages,” Dr. Fleisher says. “The things that make them vulnerable are where they stand socially and where they stand developmentally.”

Developmentally, their judgment and decision-making abilities are still coming online, he says. The prefrontal cortex — the brain’s executive control center — doesn’t fully develop until one’s mid-20s."

https://connect.uclahealth.org/2022/03/15/suicide-rate-highest-among-teens-and-young-adults/