Are you happy yet? A psychologist says he can prove that Friday 23 June, today, will be the happiest day of the year. Next Article If You Can’t Beat ‘Em, Coin ‘Em Grist staff Politics Grist thanks its sponsors. Become one. Grist thanks its sponsors. Become one. To support our nonprofit environmental journalism, please consider disabling your ad-blocker to allow ads on Grist. Here's How