What It Takes to Hold Your Breath for 24 Minutes (2017)
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Re: What It Takes to Hold Your Breath for 24 Minutes (2017)
#2On this topic, David Blaine's TED talk about holding his breath for 17 minutes is probably the most interesting TED talk there is.
https://www.ted.com/talks/david_blaine_how_i_held_my_breath_...
Re: What It Takes to Hold Your Breath for 24 Minutes (2017)
#3Wow. That's approaching the time for dolphins, whales and similar sea mammals.
Of course, his record is without doing any work, unlike a dolphin which is swimming.
Free divers are swimming though and their underwater time is very impressive.
Re: What It Takes to Hold Your Breath for 24 Minutes (2017)
#4Doesn't the brain start to die after 10-15 minutes without oxygen? How could he possibly go that long without breathing without suffering any brain damage? I remember when David Blaine was going for the records, the biggest concern was that he would irreversibly and severely damage his brain.
Re: What It Takes to Hold Your Breath for 24 Minutes (2017)
#5Doesn't the brain start to die after 10-15 minutes without oxygen? How could he possibly go that long without breathing without suffering any brain damage? I remember when David Blaine was going for the records, the biggest concern was that he would irreversibly and severely damage his brain.
Your brain still receives oxygen without you breathing.
Re: What It Takes to Hold Your Breath for 24 Minutes (2017)
#6Doesn't the brain start to die after 10-15 minutes without oxygen? How could he possibly go that long without breathing without suffering any brain damage? I remember when David Blaine was going for the records, the biggest concern was that he would irreversibly and severely damage his brain.
He does start with a lung full of pure oxygen.
Re: What It Takes to Hold Your Breath for 24 Minutes (2017)
#7Doesn't the brain start to die after 10-15 minutes without oxygen? How could he possibly go that long without breathing without suffering any brain damage? I remember when David Blaine was going for the records, the biggest concern was that he would irreversibly and severely damage his brain.
He does start with a lung full of pure oxygen.
That seems like a poor idea.
Re: What It Takes to Hold Your Breath for 24 Minutes (2017)
#8Doesn't the brain start to die after 10-15 minutes without oxygen? How could he possibly go that long without breathing without suffering any brain damage? I remember when David Blaine was going for the records, the biggest concern was that he would irreversibly and severely damage his brain.
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Re: What It Takes to Hold Your Breath for 24 Minutes (2017)
#9Earlier quoted context omitted.
He does start with a lung full of pure oxygen.
That seems like a poor idea. https://en.wikipedia.org/wiki/Oxygen_toxicity
oxygen toxicity at sea level (1 atmosphere of pressure) would require a 140% oxygen mixture - it's only when you go to higher pressure environments (eg 10m underwater = 2 atm) that it becomes an issue (at 2atm, 70% oxygen is toxic; at 4atm, 35% oxygen is toxic, etc - regular air is 21% oxygen, which becomes toxic around 7atm aka 60m underwater)