Well that is interestin!

Our DD LOVED her JJ and went in it most days from about 4.5months. SHe already had a lot of back and neck strength and I think it helped her gain leg strength too. I was always careful to have it at the right height and when she learned about timing she was boinging away happily on bended knees and flat feet. She was completely manic about it! There is no way she wanted to come out after only 10mins, she wanted about 30mins most days.

I wonder when this information came out as our JJ was bought new about 1year ago and there is quite a lot written onthe box about researchers saying how GOOD they are for child development etc.