Some red flags can help you identify a toxic person, according to the MIT Sloan School of Management.
The first is narcissism, or an excessive interest in or admiration of one’s self.
Next is Machiavellianism, the power-hungry and unethical mindset made famous by Niccolo Machiavelli’s 16th century work “The Prince.”
Last is psychopathy, an inability to deal appropriately with one’s negative emotions and impulses.
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