Four types of thinker have been identified. Which one are you?

Investigation finds evidence of distinct groups, from big-picture thinkers to those who sweat the small stuff

An investigation into what people think about has put the spotlight on the modern mind, revealing thoughts dominated by work, the need for coffee and a strong desire to go back to bed.

It also found evidence for four distinct groups of thinkers who spend more time than most either worrying about the world; mulling on household chores and finances; focusing on the mind and body; or the work-hard, play-hard combination of career and pleasure.