" men and women have two ages: a chronological age, and an emotional age they feel inside. (I’ll explore this subject in more detail in a later chapter.) Men typically conceal evidence of their younger selves in drawers, or buried inside online folders, whereas women are less embarrassed about publicly showcasing their younger selves, and express it openly "

― Martin Lindstrom , Small Data: The Tiny Clues that Uncover Huge Trends