How accurate is Apple Watch deep sleep

The Apple Watch claims to track deep sleep with impressive precision, but how accurate is it really? By analyzing heart rate variability and movement patterns, it offers insights into sleep quality, yet individual variations may affect its reliability.

Can an Apple Watch detect narcolepsy

As technology advances, the potential for wearable devices like the Apple Watch to monitor health conditions grows. Could this smartwatch be a game-changer for narcolepsy detection? While it offers sleep tracking, its ability to diagnose remains unproven.