US Presidential Candidate Ted Cruz harvests data called "psychographic profiles" from tens of millions of US citizens in Facebook. According to The Guardian Ted Cruz's campaign collected these data without the permission of the Facebook users.
A study by British Scientists found that teenagers who spend too much time on the internet, TV or playing computer games reduce their academic performance. According to Fox News, the study conducted by researchers from Cambridge University involves 800 students from age 14 to 15. The study found that teenagers who spend one extra hour on their computer, mobile device, and TV screens have two grades worse in exams than those who don't. The study found that physical activity had no effect on the teenagers' academic performances.