"Tech and Health: Latest Trends in Wearables and Smartwatches"

In honor of World Health Day, this article highlights the top health and fitness features on Apple Watch and iPhone, including high and low heart rate notifications, irregular heart rhythm notifications, ECG and AFib history, cardio fitness, heart rate variability, sleep tracking, and more. The article also includes third-party accessories and apps that sync with Apple Health, as well as tips on avoiding back pain at your desk and keeping your iPhone clean.