Wade and Tavris explain that various external factors influence people's thinking and behaviors. Media consumption is growing and can impact memories and dreams. A study by Van den Bulck et al. found that violent and sexual media viewed during the day infiltrated participants' dreams that night. The study was conducted in Turkey, which has stricter censorship rules than the US, and results may differ in the US. Additional factors like conditioning and learning from the environment also influence behaviors according to the textbook. Violent and social media can impact behaviors and dreams may relate to external behaviors. The article supports the textbook by showing media influences thoughts and behaviors.