Define the risky behaviour

Risky behavior can be defined as indulgence in any action or activity that can cause potential harm to an individual as a consequence of what they choose to do.

Risky behavior is defined as any behavior, consciously or unconsciously controlled one, with a supposed doubt about its result or likely benefits, costs, etc. Some of them can be considered normal because of the stage of the life of the person doing them but must be controlled as well. Those are more common during adolescence because of the curiosity, challenges, life's questions people of that age experience.