An Apple Watch can be used for countless tasks -- making phone calls, responding to text messages and reading emails, to name just a few -- but did you know that this smartwatch is also a powerhouse when it comes to monitoring and supporting your health? To learn more about the hidden health features on the Apple Watch, I spoke with Dr. Lauren Cheung, a doctor at Apple, who elaborated on how these tools were designed and who they can help the most.

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1. The Vitals app

Using overnight health metrics, the Vitals app can reveal much about your health and how it changes daily. From heart rate and wrist temperature (available on Apple Watch Series 8 or later and a

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