Why is it hard for me to concentrate when I'm sitting in the office, but when I'm playing basketball, I'm alert and focused? Why do socks get lost in the wash? How can I enjoy life more? How can I restrain myself when I feel an uncontrollable need to break the rules I have set about my investments in the capital market? Professor Dan Arieli's research grew out of the difficult experiences he had. In his teenage years he faced pain from third degree burns on seventy percent of his body, the pain and scars left on his body made him feel uncomfortable in almost any social situation. This is partly why Ariely dedicates his career to trying to better understand human nature, finding out where we tend to make mistakes and how we can improve our decisions and their results. Over the years, Dan Arieli's many readers have asked him questions from their everyday lives, and his answers published here are smart, funny and above all teach us something about human nature. Dan Arieli is a professor of psychology and behavioral economics at Duke University, he is also the founder and head of the Center for Advanced Hindsight. Dan is the author of three bestsellers: "Irrational and not accidental", "Irrational but not terrible", and "The truth about the truth". He lives in Durham, North Carolina, with his wife Sumi and their two lovely and well-educated children, Amit and Neta.