Nicholas Christenfeld was educated at Harvard and Columbia where he earned, or at least received, a B.A. and a PhD in psychology. He then became, and plans to remain, a professor of psychology at UC San Diego. There he studies an array of topics broadly, if perhaps unhelpfully, described as the social psychology of everyday life. His research has addressed such questions as why a baseball season is ten times as long as a football season, how people choose which box of Cheerios to take from the supermarket shelf, whether babies resemble their parents, and dogs their masters, if story spoilers actually spoil stories, which gender is funnier, when during the month one is likely to die, and whether visiting New York City would make that outcome more likely, who says “um,” whether music does soothe the savage breast, why it might be hard to tickle oneself, if men are more prone to jealousy, and why one’s heart would be grateful if one made more friends.