Which is the happiest day of a week? Saturday or Sunday? And which is the worst(最糟糕的) day? Is it Monday? On Mondays everyone goes back to school or work.
Two teachers in the USA did research(研究) about the happiest and worst days of a week. Peter Dodds and Chris Danforth studied 10, 000, 000 sentences on social media. All of them have the words" I feel" or" I'm feeling". Then, the teachers had a way of giving scores(分数) for words, between 1 and 9. Words like "excited" and" relaxed" could get high scores(6—9) but scores for words like "bad" and" terrible" were low (1—3). At last, they used these numbers to know which is the happiest day of the week. The research shows that Sunday is the happiest day. On that day, people think and write about the fun things they do on Saturday. Monday is also a happy day because people still remember their weekends. And the worst day of the week for most people is Wednesday. There are still two days for work before the weekend.
The research finds another surprising fact: people between 45 and 60 are the happiest people online, but the unhappiest group is students in junior high.