The most risky behavior a teenager can engage in

https://www.youtube.com/watch?v=2Q4tlPEihAM

Using the textbook and one additional scholarly source, what do you think is the most risky behavior a teenager can engage in? Be sure to explain your position using proper support and citation.

Rathus, S.P. 2020. Human Lifespan Development. 6th ed. Cengage Learning. this is the book