Question

why some babies are born and healthy since childhood???​

Answer 1

Answer:

Many babies who are under three months cry a lot, especially in the late afternoon or evening. ('Jiggling' babies is not a good way to help them settle and can be very scary or even painful for the baby, even if they stop crying. It is very important not to shake a baby.)

Your baby is bombarded by external stimuli (shapes, sounds, colours) and can easily feel overwhelmed.