According to the DSM-5 manual of mental disorders, up to 6% of the adult population in the United States may have a narcissistic personality disorder. That’s about 20 million people. Chances are good that you or someone you know may be married to a narcissist, the son or daughter of a narcissist, the parent of a narcissist, or a sibling or a cousin. If so, you know that it can be very hard to cope with their constant criticisms, arrogant statements, preoccupation with themselves, disparaging remarks, and demands for admiration. Not only does this get tiresome, it can also wear down your own self-esteem, be exhausting, and absorb a huge amount of your time with nothing received in return. This article gives some suggestions for how you can deal with them without getting stuck in the mud or disliking yourself.