Yang charted happiness across age and racial groups and found that among 18-year-olds, white women are the happiest, with a 33% probability of being very happy, followed by white men (28%), black women (18%) and black men (15%). Differences vanish over time, however, as happiness increases. Black men and black women have just more than a 50% chance of being very happy by their late 80s, while white men and white women are close behind.