The participants were signalled seven times a day over 14 hours for seven consecutive days so they could message back whether they were experiencing a desire at that moment or had experienced one within the last 30 minutes, what type it was, the strength (up to irresistible), whether it conflicted with other desires and whether they resisted or went along with it. There were 10,558 responses and 7,827 “desire episodes” reported.

“Modern life is a welter of assorted desires marked by frequent conflict and resistance, the latter with uneven success,” said Hofmann. Sleep and leisure were the most problematic desires, suggesting “pervasive tension between natural inclinations to rest and relax and the multitude of work and other obligations”.

The researchers found that as the day wore on, willpower became lower. Their paper says highest “self-control failure rates” were recorded with media. “Resisting the desire to work was likewise prone to fail. In contrast, people were relatively successful at resisting sports inclinations, sexual urges, and spending impulses, which seems surprising given the salience in modern culture of disastrous failures to control sexual impulses and urges to spend money.”