8 ms·
Intermittent hypoxia increases blood flow and benefits executive function
- ThrowawayTestr 11mo agoSo those breath holding contests we had at school were making us smarter?
- eastbound 11mo agoIn aggregate yes. When the most stupid die, the average IQ increases. I’m joking, by the way. The more risk-taking people might be the ones who push civilization forward. Starting with Churchill…
- tapoxi 11mo agoFinally, an upside to sleep apnea
- evanjrowley 11mo agoMaybe this is the link between sleep apnea and hypertension.
- samus 11mo agoThere is overall no health benefit since the hypoxic phase is quite long and creates stress during a time when the body is supposed to rest and recover. And that compounds with the underlying issue, usually mouth breathing, bad pillow, bad sleeping position, or a combination of these.
- elric 11mo agoPretty sure that was meant as a joke. Mouth breathing is not a cause of sleep apnea, but it can be a consequence. Bad pillows and bad sleeping positions aren't causes of sleep apnea either, but some people do have "positional sleep apnea" where the apnea is (usually) much worse on the back and much better on the side. One can also have sleep apnea without ever experiencing hypoxia. Drops in oxygen saturation during hypopneas are very minimal, and pretty much nonexistent with respiratory effort related arousals (RERAs). Not breathing is bad, but for many people with sleep apnea, the problem is the constant arousals and the lack of decent sleep, not a lack of oxygen.
- ang_cire 11mo agoCame to say this. If one day I don't wake up, at least everyone will know my brain was lit beforehand!
- joecool1029 11mo agoI am wondering if this related to hypoxia inducible factor (HIF) activation. Seem to recall the nootropic Noopept allegedly acts as an activator for HIF-1. Maybe there are others. Could possibly be a therapeutic target, maybe not. This is not my area of study, I'm just reiterating some of what I've read in the past.
- deadfece 11mo agoSeems like that was what they set out to prove. Hopefully some of that can be reproduced in further studies.
- PaulHoule 11mo ago... note that the article linked from this discussion https://news.ycombinator.com/item?id=46168057 https://news.ycombinator.com/item?id=46168057 mentions intermittent hypoxia as a rapid acting treatment for depression right up there with Ketamine and ECT
- ajuc 11mo agoAsthma counts?
- evanjrowley 11mo agoBut depending on how it's done, may possibly damage your vision: https://www.sciencedirect.com/science/article/pii/S2451993618302196 https://www.sciencedirect.com/science/article/pii/S245199361...
- foxyv 11mo agoErotic asphyxiation is way different from intermittent hypoxia. Typically erotic asphyxiation is cutting off the flow of blood to the brain by constricting the veins and/or arteries in the neck. Intermittent hypoxia in the case of divers and Wim Hof enthusiasts is a breath hold. This doesn't cause a spike or decrease of blood pressure in the brain. > Intermittent hypoxia (IH) entails alternating between intervals (typically 2–6 min in duration) of breathing normoxic (i.e., room air) and hypoxic (i.e., FiO2 of 10%–13%) gas mixtures and is a protocol that increases CBF and has been identified as a potential intervention to improve brain health (Panza et al. 2023). The onset of a hypoxia interval elicits an acute response wherein a rapid chemoreceptor-identified reduction in arterial (SaO2) and cerebral tissue (ScO2) O2 saturation stimulates increased ventilation and heart rate (HR) to maintain homeostatic O2 delivery
- cryptonector 11mo agoI wonder if she rolled her eyes hard or something. Anyways, erotic asphyxiation is such a bad idea.
- rc5150 11mo agoFor you.
- 1970-01-01 11mo agoMakes me wonder if professional divers are statistically more intelligent than average, as they will experience hypoxia as part of the job. https://en.wikipedia.org/wiki/Professional_diving https://en.wikipedia.org/wiki/Professional_diving
- ceejayoz 11mo agoThey shouldn't experience hypoxia. That's what the air supply is for.
- 1970-01-01 11mo agoIt's not so simple. Check this out: https://en.wikipedia.org/wiki/Freediving_blackout#Ascent_blackout https://en.wikipedia.org/wiki/Freediving_blackout#Ascent_bla...
- ceejayoz 11mo agoBarring really traditional (and now very rare) pearl/scallop divers, professional divers aren't doing it by holding their breath.
- PaulHoule 11mo agoI never got "deep" into it but everybody told me that breath holding diving can be really dangerous. I know part of the SCUBA story is that phenomena like nitrogen narcosis are particularly dangerous because you need your cognitive capacity to survive in the underwater environment. In the surface world I can go to a party and drink eight beers and maybe throw up and act like a dumbass and embarrass myself and then wake up with a headache the next morning. That level of incapacitation under water would likely be fatal.
- ceejayoz 11mo agoYeah, when I learned scuba, I was told the rule with freediving is your buddy stays on the surface while you dive; that way they can rescue you if you can pass out.
- elif 11mo agoAnother confirmation for wim hof breathing
- samus 11mo agoRather of its opposite (but similar): Buteyko breathing, which puts emphasis on building up CO2 tolerance and adopting more gentle, relaxed breathing patterns by inducing carefully controlled hypoxia. But I have to admit, I know only very superficially what the Wim Hof method is.
- ratelimitsteve 11mo agoaccording to wimhofmethod.com their breathing exercises are meant to increase oxygen levels, not decrease them
- jrootabega 11mo agoI'm not knowledgeable enough to confidently verify this from the linked material, but aren't they keeping CO2 levels the same during the hypoxic periods? i.e. isn't this significantly different than just holding your breath/being choked/sleep apnea?
- hackingonempty 11mo ago> Healthy young adults (N = 24)
- emmelaich 11mo agoI was given a tip to stay awake a while back: hold your breath for a little while. Apparently this well known for many years but I had never heard of it. Seems to work, but this was in the context of driving which I do not recommend, having fallen asleep at the wheel once and woken up rally driving down some paddock.
- wslh 11mo agoA few days ago I linked some research to well known intervals running practice that include hypoxia: https://news.ycombinator.com/item?id=46169398 https://news.ycombinator.com/item?id=46169398
- lubujackson 11mo agoIs this the new Adderall? ...I'm not holding my breath.
- deleted 11mo ago[deleted]
- kylehotchkiss 11mo agodon't tell the microdosers
- etrautmann 11mo agoThe main effect of a reaction time reduction looks incredibly small and is all the way in Fig 6. I would not over interpret this result without higher N and some discussion of effect size.
- alex1138 11mo agobrb
- nradov 11mo agoI guess it worked for Deadpool.
- Hnrobert42 11mo agoI'd love to see them develop an at-home protocol for this, but I'm not holding my breath.
- estimator7292 11mo agoIntermittent fasting, but for oxygen. Breatharians will be elated
- everythingfine9 11mo agoSo my mild sleep apnea is a good thing, got it
- deleted 11mo ago[deleted]
- Madmallard 11mo agoSounds not very believable and probably sampling bias and other hacked research parameters.
- LorenPechtel 11mo agoExcept I've seen this suggested elsewhere, beneficial effects from both skydiving and from scuba diving. Things that cause big swings in available oxygen.
- bitwize 11mo agoAutoerotic asphyxiation bros be like "hell yes, we ARE the master race"
- m463 11mo agoI know people that live at altitude control their weight better. I also know top athletes train in hyperbaric chambers (extra oxygen).
- LorenPechtel 11mo agoI'm not remotely at that level but I can see the difference between my performance in local terrain vs Death Valley. There's a decent amount of stuff down there bumpy enough to be interesting but not so bumpy as to make it hard to get through. But, on the flip side, I have never been able to find a good, sustainable pace in the mountains.
- AceyMan 11mo agoYou mean, forcing your body into a situation where it needs more oxygen than is available is ... good for you? That sure sounds like cardio-aerobic exercise, doesn't it?
- evanjrowley 11mo agoYes! Not to be confused with professional work where the only feasible way to complete the job is to spend hours wearing respirators clogged with particulate, having only one free hand to move heavy/bulky equipment through tight spaces, where getting a full breath of air is anatomically impossible. Extended periods of hypoxia are taxing on the body and require periods of recovery.
- foxyv 11mo agoGenerally, you don't get hypoxic while using a clogged respirator. The problem in such cases is mild hypercapnia and increased work of breathing (Respiratory loading). Hypercapnia in general can cause short term cognitive issues but not long lasting issues. Respiratory loading can cause temporary pulmonary edema. However, the respiratory loading and hypercapnia are extremely mild in the case of clogged respirators. Especially when compared to divers and snorkelers. The usual problem is that the respirator stops preventing contaminated air from reaching your lungs. As the filters become clogged, the air bypasses the seal around your face. This is why I prefer a powered respirator. Zero work of breathing and positive pressure at the seals.
- glerk 11mo agoIt intuitively makes sense that moderate exposure to a variety of stressors (resistance training, fasting, cold showers, sauna, sleep deprivation, etc.) forces your body to overcompensate, develop adaptations, and become more resilient.
- amriksohata 11mo agoNisshesha Rechaka and Kapalvati prescribe very similar processes to create a similar (but different) state of hypoxia, i.e yoga
- mxmilkiib 11mo agoI wonder how this might figure in relation to PoTS (postural orthostatic tachycardia syndrome), either way PoTs being where the autonomic system doesn't equalise blood pressure, especially when standing up n still for several minutes, this the brain doesn't get enough oxygen, so brain fog, head rushes, grayouts (and fatigue, temperature dysregulation + intolerance) (I've the hyper-adrenergic variety, hyper-PoTS, where the brain tries to generate pressure in a way that will never generate pressure, leaving it so frustratingly easy to have adrenaline rushes that can last for hours) I've seen a PoTS professional describe the effects as like kind of a mini stroke it's getting more attention now due to the long COVID relation, and it seems that maybe microclots have become a prime suspect as a possible cause to many symptoms, though there's so many jigsaw pieces, and discerning correlation n cause n effect etc.. obviously there's many contextual tipping points between that and this study (if generalisable) apparently I have a strong heart. idk related; I've nostrils with the collapsing innner valve, so I can't get deep breaths through my nose (and got getting enough air whilst sorry l asleep is a cause of bruxism) rhinoplasty then turbinate reduction helped mildly, but apparently having some cartridge inserted would help prop the path open for a more normal use. so, both of these leave me feeling out of breath a lot and it's why I'm a month breather. hopefully a third bit of surgery will finally properly help some kinda vague anecdata there, some kind of a lens anyway!