I don't think anybody is trying to pry or be insensitive by asking "why"? I think it's a natural question when somebody passes away who was seemingly so full of life and very fit/healthy. It's human nature to be curious.
Oh, Just came across this post. Very sad!! I came across her DVDs about 13years ago, and just loved her. I did not do her stuff alot, but thought she was a great person with a great heart. Makes me sad.
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Billie TX
Mom to 6 Boys, Wife, RN, I love Life!!