The Jekyll and Hyde Syndrome: What to Do If Someone in Your Life Has a Dual Personality - or If You Do

While every person has a dark side, some people experience unpredictable or abusive mood swings that are more dramatic than average: the spouse or parent who is loving one minute and totally enraged the next, the friend whose personality changes dramatically after drinking alcohol or taking drugs, or the person who lives a double life, appearing to be the pinnacle of virtue in public while leading an entirely different existence—even maintaining a separate identity—in private. People like t...