Kris Kringle makes a little deaf girl very happy by speaking in sign language with her.

In this clip, Mixie goes to speak to a family working together to prepare dinner.

Dr. Eva Zambrano speaks with a deaf patient after an emergency operation.

Melody discusses with Cameron's decision of a Cochlear Implant.

Disclaimer: This visuals in this clip may be discomforting. In this visualization of 18th century medicine, Abigail Adams and her children get inoculated against small pox. Innoculation was pioneered in the West by Edward Jenner.