Here's something every parent who uses common sense has known forever, but for some reason it required a team of scientists with funding to make 'official': Children should be allowed to get dirty, as being too clean can impair the skin's ability to heal.
Apparently the study confirms the "hygiene hypothesis" which holds that exposure to germs during early childhood primes the body against allergies. Well hooray for science!
But before you let your little ones run amok in the garden, bear in mind that a spokeswoman for Allergy UK said there was a growing body of evidence that exposure to germs was a good thing. But she said "more research was needed". Obviously any further research would need funding so clearly there's no vested interest there then.
Read the full story on the BBC here: Dirt can be good for children, say scientists