The Oura Ring currently tracks a variety of health metrics like sleep quality, activity levels, heart rate, heart rate ...

Check out our curated selection of the best fitness trackers currently available on the market to help you reach your health ...

Troy Adkins has 15+ years of residential property investment analysis experience and over a decade of institutional investment consulting experience. Charlene Rhinehart is a CPA , CFE, chair of an ...

We reviewed the best Fitbits to help you meet your 2026 fitness goals and budget, including models with basic tracking and ...

Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...

A pulse oximeter measures blood oxygen levels at home and in healthcare settings. Abnormally low readings on a pulse oximeter might require medical care, especially if they are below 92%. Skin color ...

Abstract: We describe an evaluation of photoplethysmography (PPG) signals with two wavelengths channels (infrared and red) using a wrist-worn sensor for the estimation of heart rate variability (HRV) ...

Objective NEWS2 (RCP 2017) 1 recommends use of ‘SpO2 Scale 2’ in patients with hypercapnic respiratory failure (usually due to COPD) to aim target saturations of 88–92%. We aimed to identify if COPD ...

Abstract: Pulse oximetry is a popular non-invasive method for monitoring the oxygen saturation levels (SpO2) in blood as well as the heart rate (HR) of a patient. The photoplethysmographic signal (PPG ...