I was in Arunamari Hospital this morning waiting to see the pead. Usually there are a lot of children there and they are very noisy. It is not surprise to see infants there as well. I saw this indian mother carried her baby and 摇来摇去，摇左摇右，摇上摇下. I think most of the mothers will do this when they want their child to sleep or to stop crying. I just wonder 1 thing, will they feel dizzy?