experienced from concerns with interpersonal evaluation and fear of negative reaction by others, surfeit expectations of failure or social rejection in socialization leads to avoiding or shutting down from social interactions. Individuals who experience significant levels of social anxiety often struggle when communicating with others, and may have impaired abilities to demonstrate social cues and behaviors appropriately. The use of social media can also cause anxiety and depression. The Internet is causing many problems, according to a study from with a sample size of 3,560 students. Problematic internet use may be present in about 4% of high school students in the United States, it may be associated with depression. About one fourth of respondents (28.51%) reported spending fifteen or more hours per week on the internet. Although other studies show positive effects from internet use. Depression can also cause people to avoid opportunities to socialize, which impairs their social skills, and makes socialization unattractive. Anti-social behaviors The authors of the book Snakes in Suits: When Psychopaths Go to Work explore psychopathy in workplace. The FBI consultants describe a five phase model of how a typical psychopath climbs to and maintains power. Many traits exhibited by these individuals include: superficial charm, insincerity, egocentricity, manipulativeness, grandiosity, lack of empathy, low agreeableness, exploitativeness, independence, rigidity, stubbornness and dictatorial tendencies. Babiak and Hare say for corporate psychopaths, success is defined as the best revenge and their problem behaviors are repeated "ad infinitum" due to little insight and their proto-emotions such as "anger, frustration, and rage" is refracted as irresistible charm. The authors note that lack of emotional literacy and moral conscience is often confused with toughness, the ability to make hard decisions, and effective crisis management. Babiak and Hare also emphasizes a reality they identified with psychopaths from studies that psychopaths are not able to be influenced by any sort of therapy. At the University at Buffalo in New York, Emily Grijalva has investigated narcissism in business; she found there are two forms of narcissism: "vulnerable" and "grandiose". It is her finding that "moderate" level of grandiose narcissism is linked to becoming an effective manager. Grandiose narcissists are characterized as confident; they possess unshakable belief that they are superior, even when it's unwarranted. They can be charming, pompous show-offs, and can also be selfish, exploitative and entitled. Jens Lange and Jan Crusius at the University of Cologne, Germany associates "malicious-benign" envy within narcissistic social