OK, but quoting the heading on the video:
"29 year old Sarah Churman was born deaf and lived her entire life in virtual silence."
But according to Churman's own description, the above is not accurate. Videos of this type, with misleading info, in some ways do a disservice to the public, leaving them with misconceptions instead of useful knowledge.
Apparently the truth is that this woman did hear pretty well with hearing aids for most of her life, well enough to develop very good speech and language skills, and now she apparently hears even better with her implant. That's excellent.