New Rule: When scientists want to learn something obvious they have to just ask me and save all that taxpayer money.

Women are grumpier than men in the morning, a survey has found.

The report, which confirms what many men have long believed, adds insult to injury by saying women also stay in a bad mood for longer.

The survey by The Sleep Council, which aims to raise awareness of the importance of good sleep, found 24 per cent of men say they never wake up grumpy, as opposed to only 14 per cent of women.

It also found that 13 per cent of women stayed in a bad mood for two to four hours, compared to 10 per cent of men.

How is it possible that these people did not know this? Have none of them been married?