Does holding your breath for long earlier passing-out do any violate to your brain?

I'm kind of a hypochondriac, but I consistency that holding my breath is kind of fun..a moment ago to see how long I can do it.

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Answers:    well if you do it long ample to pass out you're bloodbath a bunch of brain cells.

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Take up a different hobby, please.

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Help!!?

Lotion problem?

Diseases that affect small percentage, not great funding resembling big killer approaching cancer?