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557 points gnabgib | 1 comments | | HN request time: 0.209s | source
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rerdavies ◴[] No.45048760[source]
I have to wonder: are there undesirable side-effects of hyperventilating? Deliberately hyperventilating for 15 minutes or more in a time doesn't seem like a great idea.
replies(3): >>45048914 #>>45049950 #>>45054180 #
1. ◴[] No.45049950[source]