Wanda is seen reading the book "The Heroic Adventures of Donny Coyote". This is an actual book by Ken Mitchell, a Canadian writer, poet and story-teller. The book is a humorous retelling of the Don Quixote story.
The world record for static apnea (as done by Karen) is actually 11 min 54 sec by Branko Petrovit. The 24:37 record is for a variation of the static apnea discipline where it's possible to breathe 100% oxygen for up to 30 minutes prior to the breathhold.
It is revealed that Karen can hold her breath for 6 minutes and placed 5th in a static apnea (breath holding) competition. By way of comparison, the world record for voluntary breath holding is 24 min 37.36 seconds, set by Budimir Sobat of Croatia on March 27, 2021.