Who wrote about holding breath etc/passing out

[Guest guest]

After Emerence's recent surgery the anesthesiologist was asking if she

held her breath or frequently turned blue when angry/under stress.

Apparently in 25% of the population there is some hole (sorry, I was

trying to climb into the bed with Emerence to calm her down during

part of the questions/explanations) in the chest that causes kids to

hold breath etc when stressed. She asked because Emerence was having

trouble when they took the breathing tube out...