You’re carrying your baby around the house. As you turn a corner, your newborn hits their head against a swinging door. Or your 4-month-old has just started to roll, and before you know it ...

The effect of the birth smells of amniotic fluid and vernix lasts for around six weeks but the genetic chemical odour signals ...

An infant or toddler's head is large compared to their body ... and offer less control of head movement. On top of that, a baby's skull is softer and thinner than an older child's.