There are many misconceptions regarding this.This is generally said and written out of concern for babies and in short, it comes down to the fact that a baby car seat such as e.g. a Maxi-Cosi Citi or Maxi-Cosi Cabrio(Fix) should not be used excessively. Children should not lie in a fixed position for too long unnecessarily. They should have the opportunity to develop their motor skills and to stretch and relax their arms, back and neck muscles. As the manufacturer of the main car seat for babies in Europe, Maxi-Cosi has been writing this for many years in the user instructions. Do not put a baby in a car seat for the whole day for convenience, but give him/her the opportunity to develop. This also applies to baby carriers and all other products in which a baby sits, hangs or lies in a fixed position. However, if you have to make a longer car journey or travel on holiday once in a while, this is no problem at all. We recommend that you stop every 2 hours. After all, a baby has to eat and be changed regularly anyway.