Insights, category: Fatigue and Stress

In the ever-evolving world of wearable technology, we’re constantly learning more about how our bodies function—and nothing is more fundamental than understanding sleep. For those looking to optimize their health and wellness, cracking the code to better sleep begins with understanding the Core Sleep Phases. These phases play a critical role in how you recover, remember, and recharge every single day.

REM stands for Rapid Eye Movement, named for the darting motion of your eyes during this phase. But the real magic happens beneath the surface. During REM sleep, your brain activity resembles that of wakefulness, and your body temporarily paralyzes most muscles.