[lynguist]

I found that the more you carry your child the less she cries. I was just carrying my child wherever I went with a strap around my front, which I found more practical than a buggy until she became too heavy.

I read a study that children that are carried all the time cry a substantial amount less than children that are not, something like half an hour less per day.

[Markoff]

it's not about carrying, but proximity to mother/parents body with human warmth

obviously baby which is held/touched by another human, ideally mother/father will cry less than baby alone from adults even if it means 0.5-1 m distance