Understand How Much Oxygen Is in Your Blood
This might come as a shocker to you, but we need oxygen to survive. Once oxygen goes inside your lungs, it goes into your bloodstream and helps you with things like keeping your energy levels and replacing cells.
That’s why it’s important to have a lot of oxygen in your system, and the Apple Watch can help you understand that a little bit better. You can track your blood oxygen with the Blood Oxygen app if you have an Apple Watch Series 6 or a newer model.
It works just like the Heart Rate app: You tap a button on your screen, stay as still as you can, and your Apple Watch will measure the oxygen in your blood.
Anything above 90 should be more than enough for most of us. But if you feel like something is off, you can and should visit your health provider.