In the wake of the tragic Reiner murders, here's what to know about how methamphetamines and other drugs can affect chronic users.

Personality disorders may be the best way to understand dictators, autocrats, and bullies, rather than labeling them crazy, mad, psychotic, fanatical, deranged, or demented.

Paranoid Personality Disorder (PPD) is a long-term mental health condition where a person has a persistent, deeply rooted distrust and suspicion of others, even when there’s no real reason to be ...