Study of 800 million tweets finds daily cycles in our thinking

It may not feel like it before a morning coffee, but people are most go-getting before 9am. Rush hour is the time when we think most about work, power, money and achievement, a study has found. After dinner, we are more likely to be preoccupied with sex and relationships, and the early hours are when we think about life's problems. That's according to a study of 800 million tweets by people shows how our priorities shift during the day. The study suggests that despite the working day being done, people are more angry at night, which may explain the number of Twitter outbursts after a few glasses of wine and close to bedtime.