Why Do Babies Not Catch Yawns Like Adults Do?

Question:

Yawning can be infectious and adults often copy each other sub consciously when yawning. Why does this effect not work on babies?

Alana, Chigwell

Answer:

Name: Dr Ross, Cardiff

Qualifications: GP

Answer: Babies take 6 to 8 weeks to develop the ability to focus and recognise faces and expressions. Once this is developed they begin to mimic expressions and yawns.