Investigation and analysis of activities , that affect the health of people in both positive and negative ways, are made. However , people keep their involvement in such activities , even if they are aware of the detrimental effects it has on their lives.This essay will explain two main reasons , first , a company of bad people and second , addiction to harmful activities are explained. In addition to that , the essay explains the actions that could be taken to prevent or lower the rate of people engaging in negative activities , too.