A Florida teen has accused Google's YouTube of causing depression, anxiety and sleep loss in children in the latest legal ...

There are many theories about the causes of addiction, the use and abuse of legal and illegal psychoactive substances. Biology, psychology, and social and cultural elements all play a role in the ...

We spend 4 hours and 37 minutes on our phones each day, checking them around 58 times, on average. We like to tell ourselves it's to socialize, for work, or to read the news. But most of us are ...