Due to an ongoing ban in the US, measuring blood oxygen can be complicated on the Apple Watch. Discover the latest and more with this guide.

Back and forth on the ban Apple had introduced blood oxygen measurement, which is generally considered to be rather inaccurate and above all not medical, in 2020 with the Apple Watch Series 6.

Hemoglobin-based blood substitutes are being developed as oxygen-carrying agents for the prevention of ischemic tissue damage and hypovolemic (low blood volume) shock.

Stress hormones affect your respiratory and cardiovascular systems. During the stress response, you breathe faster in an effort to quickly distribute oxygen-rich blood to your body.

What are the findings? At least 12 weeks of high-intensity interval training (HIIT) improves cardiometabolic risk factors such as waist circumference, % body fat, resting heart rate, systolic blood ...