If rising atmospheric CO₂ is contributing to gradual shifts in blood chemistry at a population level, then the composition of ...

Pixel Watch users report that since the March update, their wearables have been failing to collect SpO2 and skin temperature data.

After updating to the latest update, several users have taken to online forums, including Reddit, Google Support, and even ...

Following the March 2026 update for Google Pixel Watch devices, a number of users are reporting that their SpO2 ...

Some earphones track heart rate and oxygen levels using Photoplethysmography and Pulse Oximetry, integrating wellness ...

Polo Rocha has written about economics and banking for a decade. Chip Somodevilla / Getty Images The Federal Reserve’s decision on whether to cut interest rates again depends heavily on the uncertain ...

"Normal" is one of those words that we don't really think about much when we use it (e.g., "normal reaction," "normal behavior," "normal person"). However, if you take the time to think about what ...

There are no official numbers for the optimal levels of testosterone, but certain medical laboratories use the following reference values for typical total serum testosterone, measured in nanograms ...

A study published in the American Journal of Human Biology suggests that Western medical standards for male testosterone might not reflect the natural variation found in different environments.

No bulk or screen; looks like a regular lock from both sides of the door. Impressive design with the battery hidden inside the lock bolt. Great battery life. App is beautiful and easy to use. More ...

In the EXAKT study from the U.K., the home-use pulse oximeters assessed all gave higher oxygen saturation (SpO2) readings for patients with darker skin tones than for patients with lighter skin tones.