Lifehacker reports that people who have a hard time connecting with others or carrying on conversations may have antisocial personality disorder.<br />Antisocial personality disorder (APD), which includes sociopathy and psychopathy, can develop as early as age 11.<br />According to Dr. Tony Ferretti, a psychologist who specializes in the disorder, APD is a lifelong condition, but some symptoms may decrease over time.<br />"People can have traits or characteristics of APD without having the full-blown disorder." Dr. Tony Ferretti, Psychologist, via Lifehacker<br />"It becomes a disorder when their thoughts, emotions, and behaviors develop into a persistent pattern that deviates from the culture." Dr. Tony Ferretti, Psychologist, via Lifehacker<br />According to Dr. Ferretti, people with the disorder can be perceived as charming, witty and fun.<br />They also tend to be manipulative, have an endgame in mind, blame others and avoid responsibility.<br />Lifehacker recommends looking at patterns in your life, particularly your relationships, to determine if you have ADP.<br />People with ADP often have a hard time maintaining interpersonal relationships, as they have difficulty attaching or connecting with others.<br />According to Lifehacker, if you're concerned about antisocial behavior it's important to consult a professional.