SCIENCE: Women Prefer Moody Men To Cheerful Ones. “The women were least attracted to the smiling happy men and most interested in those whose head was held high with pride. They also found the men who looked ashamed rather attractive.”

UPDATE: Reader Cindy McNew writes: “One possible conclusion that reflects well on both sexes: Cheerful men are more likely to be partnered up already.” I like it! Explains my cheeriness, anyway.