James Nestor
"Deep - Freediving - A diving instructor explains
pp.39-40:
The human body responds to extreme breath-holding (CO2 build-up) in 3 stages: >1) Muscular contractions:
youve only got a few minutes to go before you really need to breathe.
2) The spleen releases up to15 % O2-rich blood into the blood-stream, when the body goes into shock: low BP, tachycardia, organ shutdown (also during extreme breath-holding):
a free-diver anticipates the spleens delivery of fresh blood, feels it happen, and uses it as a turbo-charge to dive even deeper.
3) Blackout, when senses that theres not enough O2 for it to support itself, and so shuts off, like a light switch, to conserve energy.
(The presence of liquid in the mouth or throat triggers another reflexive line of defense: the larynx automatically closes, stopping water from entering the lungs.)
Free-divers learn to sense muscular contractions (1) & spleen release (2): >they know exactly went head back to the surface so blackout (3) wont occur. >A free-diver survives by understanding & respecting these mechanisms.
Dive instructor:
Theres a reason were built with all these amazing rows of defense:
we are meant to be underwater! You are born to do this!
Like Erika Matthews (Gutsick Gibbon) already said in her youtube video
"The Aquatic Ape Theory (is silly)", for good reasons this is called
the mammalian diving reflex/response, not the human diving reflex: https://en.wikipedia.org/wiki/Diving_reflex
Like Erika Matthews (Gutsick Gibbon) already said in her youtube video
"The Aquatic Ape Theory (is silly)", for good reasons this is called
the mammalian diving reflex/response, not the human diving reflex: https://en.wikipedia.org/wiki/Diving_reflex
Pandora wrote:
Like Erika Matthews (Gutsick Gibbon) already said in her youtube video
"The Aquatic Ape Theory (is silly)", for good reasons this is called
the mammalian diving reflex/response, not the human diving reflex:
https://en.wikipedia.org/wiki/Diving_reflex
Yes, humans can hold their breath.
Yes, we find physical evidence of diving, or habitual entrance to water >("Surfer's Ear").
some kudu runner:
Like Erika Matthews (Gutsick Gibbon) already said in her youtube video
"The Aquatic Ape Theory (is silly)", for good reasons this is called
the mammalian diving reflex/response, not the human diving reflex:
https://en.wikipedia.org/wiki/Diving_reflex
No, my little boy:
James Nestor "Deep - Freediving - A diving instructor explains pp.39-40:
The *human* body responds to extreme breath-holding (CO2 build-up) in 3 stages:
1) Muscular contractions: youve only got a few minutes to go before you really need to breathe.
2) The spleen releases up to15 % O2-rich blood into the blood-stream + low BP, tachycardia & organ shutdown.
3) Blackout.
Free-divers learn to sense muscular contractions (1) & spleen release (2): >they know exactly went head back to the surface so blackout (3) wont occur. >They understand & respect these mechanisms.
Dive instructor:
Theres a reason were built with all these amazing rows of defense:
we are meant to be underwater! You are born to do this!
And their shit too
Deep free diving is not an olympic sport:
Kudu runner:
Deep free diving is not an olympic sport:My little little little boy (when are you to grow up??), nobody here speaks of deep diving!
- sigh
Why don't savanna believers inform a little bit before trying to say something??
e.g.
Conference: Homo litoralis:
Pleistocene diaspora along coasts and rivers
St.Paul's Hotel London 8-10 May 2013 - Peter Rhys Evans
Early-Pleistocene archaic Homo spread intercontinentally following African & Eurasian coasts & rivers, feeding predom. on shallow-aquatic foods, esp. shellfish, which are extremely rich in brain-specific nutrients:
LC-PUFAs e.g. DHA, taurine, iodine, oligo-elements etc.
Most anatomical innovations in H.erectus (vs earlier hominids such as australopiths) are typically or uniquely seen in littoral mammals:
- brain expansion,
- platycephaly,
- pachyosteosclerosis,
- external nose,
- ear exostoses,
- very large lungs,
- wide body,
- platymeria,
- etc.etc.
Every one of these already proves the littoral theory!
With notes on early colonizations of overseas islands (Flores, Sulawezi, Luzon, Cyprus, Crete, Dodekanesos etc.) & rudiments of littoral adaptations in extant humans:
- fur loss,
- panniculus adiposus,
- aligned body, pin-hole pupils underwater,
- olfactory reduction,
- etc.etc.etc.
Only incredible imbeciles believe their Pleistocene ancestors ran after antelopes!
Only incredible imbeciles deny our Pleistocene ancestors followed coasts & rivers!
Kudu runner:
Deep free diving is not an olympic sport:
My little little little boy (when are you to grow up??), nobody here speaks of deep diving!
- sigh
Why don't savanna believers inform a little bit before trying to say something??
"Nestor moved to
Human scalp hair is as dense as chimps, but grows much longer, due to selection for piggyback riding of babies while foraging bipedally.
The diving/swimming would have been an enormous advantage during an interglacial
phase.
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