Diving physiology in penguins has been extensively studied in the bigger, deep diving species equivalent to emperor and gentoo penguins, nonetheless the blood oxygen storage capacity of the mid-depth diving crested penguins is much less understood. For this venture, I measured the concentrations of hemoglobin and hematocrit in three species of crested penguins (Fiordland penguin/tawaki, BloodVitals test erect-crested penguin, and Eastern rockhopper penguin) in New Zealand to check oxygen storage capacity and dive depth/time. Data analysis for this venture continues to be underway, but preliminary results suggest that the larger erect-crested penguin has the very best hemoglobin and hematocrit values of the three suggesting a better oxygen storage capacity in the blood and extra efficient transport of oxygen to the tissues allowing deeper or longer dives. Data from this challenge was cited in New Zealand Geographic 2023 article The future is Written in Penguin Blood (see Media tab for links). Publication of a brief word containing these values is on deck for Notornis.

The Apple Watch Series 6 feels prefer it has perfected most of the features I liked about its predecessor. It has a brighter all the time-on show, a more highly effective processor, faster charging and two new colorful options to choose from. However the feature I was most excited to check out was its new sensor that measures oxygen saturation within the blood (aka BloodVitals SPO2) with the tap of a screen. As someone who panic-bought a pulse oximeter firstly of the coronavirus pandemic and still checks her levels at the first sign of a cough, the thought of getting one strapped to my wrist always was sufficient to pique my interest. But unlike the ECG function on the Apple Watch, which has been tried, examined and cleared by the US Food and Drug Administration, along with the irregular coronary heart rhythm notifications, SpO2 on the Apple Watch nonetheless seems to be in its early stages. Navigating all this new information will be daunting for BloodVitals SPO2 anyone who's not a medical professional.

I purchased an FDA-cleared pulse oximeter, the device medical doctors use to measure SpO2 on your fingertip, as a precaution when coronavirus instances within the US began to climb. Having low blood oxygen levels doesn't assure you have COVID-19, however it's one in all the main signs of the disease. I had read horror stories of people who waited too long to go to the hospital and had died in their sleep because they didn't understand their levels had dipped overnight. It's best to always BloodVitals test with a physician if you are experiencing shortness of breath (one other symptom of COVID-19), BloodVitals test even if a pulse oximeter says you are in a healthy vary, but I discovered comfort in realizing that I could at the very least use it as a reference if I ever experienced shortness of breath. That's not one thing you can do with the Apple Watch -- Apple says it ought to be used for wellness purposes only and not as a medical system, which means you'll have to take the results with a grain of salt and BloodVitals test should not use it to display screen for any type of disease, which is what I had been hoping to get out of it.

But there could also be other advantages of getting it strapped in your wrist at all times. Very similar to a pulse oximeter, the Series 6 makes use of purple and infrared gentle from its new sensor to find out the percentage of oxygen within the blood. But instead of shining the sunshine by your fingertip, it uses the sunshine that is reflected back from the blood vessels in your wrist to determine your oxygen ranges primarily based on the coloration of your blood. In the course of the setup course of you are asked whether or not you wish to activate SpO2 monitoring, which I did, but you possibly can always go back and disable it in the settings after the fact. The very first thing I did after strapping on the Watch was open the Blood Oxygen app. It gives you a few recommendations on learn how to get the perfect result and you should relaxation your arm on a desk or flat floor while the Watch is taking a studying.

Then the 15-second countdown begins and you're accomplished -- straightforward and painless. I got a 95% on my first read, which was decrease than what I'm used to from my pulse oximeter. Anything above 90% is usually thought of by clinicians to be within a wholesome vary, however generally, greater is best. I tested it a few more instances and acquired slightly completely different results inside a few share factors relying on whether I was fully nonetheless and silent through the test, where I had the watch positioned on my wrist and the way tight the strap was. There are various components that can affect a studying, akin to pores and skin temperature or the position of the sensors on the body. 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 interesting to me was the SpO2 data that collected over time in the Health app .