Apple Watch Blood Oxygen Sensor Returns: How to Use It and What It Can Tell You About Your Health The smartwatch's Blood Oxygen app lets you measure the oxygen level of your blood on-demand.

Our medical experts vetted the best and most popular watches that monitor heart rate on the market for 2025. Find out more here.

We’re seeing heart rate monitors and other biometric sensors integrated into watches, earbuds, headbands, sports bras, and all sorts of other garments and accessories.

Learn how to create a risk assessment matrix in Excel with this step-by-step guide. Automate, visualize, and simplify risk management with a ...

Learn how to create a drop-down list in Excel without or with color using conditional formatting and data validation rules.

In short, if you have an Apple Watch Series 9, Apple Watch Series 10, or Apple Watch Ultra 2 on which the blood oxygen sensor is disabled, update to iOS 18.6.1 via Software Update and to watchOS ...

Polar heart rate monitors are often used as the gold standard. But can your Polar watch track calories burned? We dove into the research to find out.

Aug 14, 2025 Magnetic nanowires take hydrogen production to the next level Scientists create magnetic nanowire catalyst that boosts oxygen evolution, a key step in hydrogen production from water.

Excel and Google Sheets have three functions to calculate the internal rate of return: IRR, XIRR, and MIRR. Learn how these functions can calculate investment returns.