Babywearing is the art of carrying a baby or toddler in a sling. Babywearing has been practiced for centuries around the world. In our current time, babywearing has been slowly becoming a part of mainstream society.
Mothers and caregivers have intuitively known to calm infants by carrying them for ages, though some past "experts" tried to dissuade the practice, or shame the parents by saying the baby was being manipulative or would be spoiled. However, science has now proven and supported intuition.
So, wear your babies and ignore nay sayers, you have science on your side! ; )