When people think of psychosis, they often imagine someone in a full-blown state of delusion—hearing voices, seeing things that aren’t there, or believing the government is tracking their every move.

From calling yourself "delulu" to saying you're in a "delusionship," the word delusional has become a prominent part of cultural slang. But I'm not sure it should be. With these terms being so ...

A new study from Simon Fraser University researchers has found a close link between high levels of social media use and psychiatric disorders that involve delusions, such as narcissism and body ...