New research has pinpointed the exact age that men mature completely: 43. That's 11 whole years after women. But at least men know they take more time to grow up. In the same study, men were nearly twice as likely to describe themselves as immature than were women, with one in four men believing they are actively immature.

Researchers asked women to reveal the signs that they say mean a man is still immature. Here are the top 30:

1. Finding their own farts and burps hilarious 

2. Eating fast food at 2 AM

3. Playing videogames

4. Driving too fast or 'racing' another car at the lights or on the highway

5. Giggling a bit at rude words

6. Driving with loud music

7. Playing practical jokes

8. Trying to beat children at games and sports

9. Staying silent during an argument

10. Not being able to cook simple meals

11. Re-telling the same silly jokes and stories when with the guys

12. Not liking to talk about themselves or have a proper conversation

13. Hating books because they have short attention span or think they’re boring

14. Doing crazy dance moves

15. Their mother still does their laundry

16.Their mother still makes them breakfast or, indeed, any meal

17. Wearing tennis shoes for a night out

18. Owning a skateboard or BMX

19. Not eating vegetables

20. Changing jobs regularly

21. Getting too excited over bachelor parties

22. Trying to do wheelies or other stunts on their bike

23. Driving a modified car or one with a loud exhaust

24. Showing off about how women are attracted to them

25. Wearing pajamas, specifically cartoon pajamas

26. Using dodgy pick-up lines

27. Showing off about protein shakes/weight-lifting/how much they 'lift'

28. Littering

29. Wearing baggy jeans

30. Having a cartoon bedspread