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Read this warning!
Underwater activities and breath-holding period are extremely dangerous. Do not attempt to test any theories herein or that you came up with on your own. If you’re thinking about going to BUD/S and being a SEAL, I’m especially talking to you. Several people have died before even getting to BUD/S during such activities. You are not as smart as you think you are.
Also, a note about hypoxia and COVID
I am not a doctor. So if you’re experiencing any symptoms at all, do not rely on this article to diagnose yourself. Hypoxia is a real danger of coronavirus (COVID-19), but this article is not intended to provide advice on this subject.
You can drown without knowing it. It happens. Under the right (read: wrong) circumstances, a diver underwater can get less oxygen than they need and pass out — without even feeling like they are out of breath.
In the middle of the coronavirus pandemic tons of healthy adults have shown up in emergency rooms under their own power and in good spirits. When nurses check their vitals during triage they discover that these patients have deathly low oxygen concentrations in their blood. They have come to be known as the “happy…
