Newborns cry, a lot.
But how do you know if your baby cries more than he or she should? Answer: you can't really.
But now, for the first time, a cry chart has been devised by a team of researchers at the University of Warwick in the UK.
And the results are fascinating.
It is a measure of what's considered the 'normal' amount of crying for the first three months of your newborn's life and strangely, that norm changes from country to country.
Dr Dieter Wolke, who lead the study, analysed 8,700 infants from across the world and found that on average babies cry for two hours per day in the first two weeks of life.
Cry time peaks at an average of two hours and 15 minutes per day at six weeks.
After the six-week peak, cry time begins to decline and the average goes down to one hour and 10 minutes per day when babies hit the 12-week mark.
The research discovered that Canada, the UK and Italy had the biggest crybabies, while Germany, Denmark and Japan had babies who cried the least.
But why?
Dr Wolke said it is all about parental attitudes:
"Danish parents are a little bit more relaxed in their behaviour and less likely to respond to babies immediately, encouraging the baby to calm itself - they also do more skin-to-skin contact"
He also told The Guardian that parents shouldn't give themselves a hard time over it as babies are simply programmed to cry and often not much the parents can do to stop it in the first few weeks.
The study also included Australia, the Netherlands and the US but didn't include Ireland.
