Diving physiology in penguins has been extensively studied within the larger, deep diving species comparable to emperor BloodVitals SPO2 and gentoo penguins, nonetheless the blood oxygen storage capacity of the mid-depth diving crested penguins is much less understood. For this challenge, I measured the concentrations of hemoglobin and hematocrit in three species of crested penguins (Fiordland penguin/tawaki, erect-crested penguin, and Eastern rockhopper penguin) in New Zealand to check oxygen storage capability and dive depth/time. Data analysis for this undertaking remains to be underway, however preliminary outcomes counsel that the larger erect-crested penguin has the highest hemoglobin and hematocrit values of the three suggesting the next oxygen storage capacity in the blood and extra efficient transport of oxygen to the tissues permitting deeper or longer dives. Data from this project was cited in New Zealand Geographic 2023 article The long run is Written in Penguin Blood (see Media tab for links). Publication of a brief notice containing these values is on deck for Notornis.

The Apple Watch Series 6 feels like it has perfected most of the options I appreciated about its predecessor. It has a brighter at all times-on display, a extra powerful processor, faster charging and two new colorful choices to choose from. But the feature I was most excited to try out was its new sensor that measures oxygen saturation within the blood (aka SpO2) with the faucet of a screen. As someone who panic-bought a pulse oximeter at the beginning of the coronavirus pandemic and still checks her levels at the primary signal of a cough, the thought of getting one strapped to my wrist at all times was enough to pique my curiosity. But unlike the ECG feature on the Apple Watch, which has been tried, tested and cleared by the US Food and Drug Administration, along with the irregular heart rhythm notifications, BloodVitals SPO2 on the Apple Watch nonetheless appears to be in its early stages. Navigating all this new knowledge can be daunting for anyone who's not a medical skilled.

I bought an FDA-cleared pulse oximeter, the gadget medical doctors use to measure SpO2 in your fingertip, as a precaution when coronavirus cases within the US started to climb. Having low blood oxygen ranges would not assure you will have COVID-19, however it is certainly one of the foremost signs of the illness. I had learn horror BloodVitals home monitor stories of people that waited too long to go to the hospital and had died of their sleep as a result of they didn't realize their ranges had dipped in a single day. You must always check with a physician if you are experiencing shortness of breath (one other symptom of COVID-19), BloodVitals home monitor even if a pulse oximeter says you are in a wholesome range, but I found comfort in figuring out that I could not less than use it as a reference if I ever skilled shortness of breath. That's not something you can do with the Apple Watch -- Apple says it ought to be used for wellness functions only and never as a medical machine, that means you will should take the results with a grain of salt and shouldn't use it to screen for any type of illness, which is what I had been hoping to get out of it.

But there may be other advantages of getting it strapped on your wrist always. Very like a pulse oximeter, the Series 6 uses pink and infrared gentle from its new sensor BloodVitals SPO2 to determine the proportion of oxygen within the blood. But as a substitute of shining the sunshine by way of your fingertip, it uses the sunshine that is mirrored again from the blood vessels in your wrist to determine your oxygen ranges based on the coloration of your blood. Through the setup process you are requested whether or not you wish to activate SpO2 tracking, which I did, however you may always return and disable it within the settings after the actual fact. The first thing I did after strapping on the Watch was open the Blood Oxygen app. It gives you a couple of tips on tips on how to get the best result and you might want to rest your arm on a table or flat floor whereas the Watch is taking a reading.

Then the 15-second countdown begins and you're finished -- straightforward and painless. I got a 95% on my first read, which was lower than what I'm used to from my pulse oximeter. Anything above 90% is mostly considered by clinicians to be inside a healthy range, however in most cases, greater is healthier. I tested it a few more instances and got barely completely different results inside a few share points depending on whether I used to be completely still and silent in the course of the test, the place I had the watch positioned on my wrist and the way tight the strap was. There are a lot of components that can have an effect on a studying, akin to pores and skin temperature or the position of the sensors on the physique. Side-by-side with my pulse oximeter, the Apple Watch was often off by about one or two points, but sometimes spot on. What was more fascinating to me was the BloodVitals SPO2 information that collected over time in the Health app .

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Pub: 11 Aug 2025 10:45 UTC

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