For semi-crystalline polymers, the crystallinity rate is a key parameter which directly influences mechanical properties, such as mechanical resistance or stiffness, as well as thermal and gas barrier ...

Everything you need to know about photoplethysmography (PPG), the technology behind heart rate measurements in fitness watches and smart rings. When you purchase through links on our site, we may earn ...

*Most of us understand the importance of regular blood pressure tests, and there’s a quick 30-second test you can perform at ...

A few weeks back, we reported on a research group that figured out how to measure heartrate using perturbations in WiFi signals. [Nick Bild] was interested in this so-called “Pulse-Fi” technique, but ...

Excessive stress is associated with health complications. Are there ways to accurately measure stress levels? Although stress is a natural and inevitable part of life, many people feel that they’re ...

Measuring stress involves assessing a person’s physiological responses to stressors and, to a lesser extent, understanding the possible triggers for stress. Measuring stress may help a person or their ...