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It's an interesting fact that the heart rate increases during inspiration, and decreases during expiration, which is why you can see the red dots following the
by tux3 3y ago
It's an interesting fact that the heart rate increases during inspiration, and decreases during expiration, which is why you can see the red dots following the blue curve on the graph
So if you breathe in a more regular way, it's also normal that your heart rate will vary a little less, since it follows your breathing cycle.
There's definitely also an effect where slow, regular respiration can help with anxiety. But I'm not sure how much of what the tool is measuring is really tied to stress response, versus just demonstrating this direct inspiration/heart rate correlation
- kbre93 3y agoAs you breath more slowly, heart rate oscillations (i.e. the variability) increase, which is a reflection of the parasympathetic nervous system activating (the "rest and digest" response). This can help to mediate the stress response, which from the sympathetic nervous system or the fight-or-flight response.
- sirsinsalot 3y agoIt is interesting that I, and many others, experience our digestive cycle as anxiety. At certain points in my digestion, my HR spikes, anxiety spikes, impending doom sensations occur. These are also sensations that happen with pre-stroke SNS responses. Rest and digest, indeed!
- polishdude20 3y agoI get something similar in that I start to feel a tiredness come on about 2-5 mins before I start to get gas pains. If I don't help that gas along (by moving or pushing on my stomach) in short order, it turns into me needing to run for the toilet. It's as if the trapped gas, left untreated, triggers a rapid digestive emptying. Or, the cases where I can receive the gas, there's no other contents in the way. The cases where I can't relieve it, well, there's lots of stuff in the way. Anyways the thing is that I get super tired before the pain in my stomach is even noticed. I've become attuned to it where it now gives me anxiety when it comes on.
- sebasvisser 3y agoYour hyper sensitivity to the gas’s might actually cause the stress, which in turn causes more symptoms. Find a way to relax and let the gas be. Find what works for you: mindfulness, sports, hypnosis, medication… However, try first to focus on normalising your perception of the gas.
- mtreis86 3y agoThis is called IBS, and is caused by bacteria digesting certain carbs very rapidly. Identify the foods with a low Fodmap diet, figure out the quantity that doesnt trigger issues, and live mostly normally. I cant eat fructose at all, and only small amounts of garlic or onions.
- nerdponx 3y agoI think the "hypersensitivity" line is BS, or at least it's not a complete explanation. In my and others' cases, the "psychiatric" GI symptoms precede the physiological ones. The only time I ever got a straight answer is when I ended up at the hospital because I was passing out, and they said it was likely some combination of low blood pressure and vagus nerve overstimulation.
- polishdude20 3y agoHmm interesting! Maybe I can try measuring my blood pressure during these times of tiredness.
- sirsinsalot 3y agoIt is well established that vagus disruption during digestion has all sorts of side effects. Including anxiety.
- nerdponx 3y agoRight, point being that's not a psychological hypersensitivity, it's a lower level subconscious physiological process.
- steve1977 3y agoCould this be some kind of food intolerance?
- sirsinsalot 3y agoSounds like it. I found I was gluten and dairy intolerant and removing those foods helped.
- gcanyon 3y agoI don't interpret that heart rate increase as anxiety, but as the extra workload of digesting food.
- sirsinsalot 3y agoIt isn't about assigning meaning, it's about your nervous system having an involuntary anxiety reaction to various physiological changes during food digestion.
- gcanyon 3y agoIf you insist. I'm saying I don't have any of the other indicators mentioned -- just the elevated heart rate.
- Horffupolde 3y agoThis phenomenon is known as “respiratory sinus arrhythmia” (RSA).
- vrc 3y agoThe term is “cardio respiratory coupling”. Basically inspiration increases intrathoracic pressure which triggers the CV control mechanism to think BP is higher via the baroreflex and therefore lower HR. If you take an FFT/PSD of pulse waveforms you will actually see a distinct peak at the breathing frequency. This is how a lot of the finger sleep measurement devices work to track breathing without a chest strap.
- ultrarunner 3y agoThis is awesome. I love when people can find a signal in ostensibly disconnected data. This finally answers the nagging question I've had of how my watch can measure my rate of breathing. Thanks for sharing!
- eternauta3k 3y ago> inspiration increases intrathoracic pressure which triggers the CV control mechanism to think BP is higher via the baroreflex and therefore lower HR But HR is higher during inspiration.
- mpreda 3y ago> inspiration increases intrathoracic pressure which triggers the CV control mechanism to think BP is higher via the baroreflex and therefore lower HR It seems CRC raises HR during inspiration. From https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4052709/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4052709/ "The increase in HR during inspiration is referred to as respiratory sinus arrhythmia (RSA) and the increase in BP as Traube–Hering waves."
- deleted 3y ago[deleted]