Some babies find it hard to settle down without sucking on their pacifiers. This self-soothing habit is a natural reflex infants learn even while still in the womb. While some children suck on their thumbs, others are given a pacifier to help them calm down. The comfort and security pacifiers bring can indeed help a [...]
Source: http://www.gagazine.com/how-to-get-your-child-off-the-pacifier/