Topic
5 Evergreen Health Journal articles about wearables, with practical guidance and cited sources.
The photobiology of artificial light at night (ALAN). How blue light from screens suppresses melatonin, alters REM sleep, and mitigation strategies.
Learn the internal engineering of tri-axial accelerometers. Why smartwatches count arm gestures as steps, pocket trackers vs. wrist, and the 8,000-step sweet spot.
Explore the technology behind heart rate monitoring. Electrocardiography (ECG) chest straps vs. photoplethysmography (PPG) wrist sensors in high-intensity training.
Compare smart rings vs. smartwatches for sleep tracking. Finger arteriolar photoplethysmography (PPG) vs. wrist sensors, battery life, and comfort.
Learn how to interpret smartwatch metrics. The clinical reality of Heart Rate Variability (HRV), photoplethysmography accuracy, and VO2 max estimates.
