Unveiling the Health Secrets of Your Apple Watch: A Doctor's Guide
Your Apple Watch: A Powerful Health Companion
Whether you're a proud owner of the latest Apple Watch Series 11 or a loyal user of an older model, there's so much more to this sleek device than meets the eye. Prepare to be amazed as we uncover a treasure trove of hidden health features that could transform your journey towards a healthier, happier you.
But here's where it gets controversial... Many of these features are so advanced, they might just make you question if your smartwatch is now a medical device!
Let's dive in and explore these hidden gems, with insights from an Apple clinician, Dr. Lauren Cheung, who's here to guide us through the world of Apple Watch health features.
- Vitals App: Your Daily Health Snapshot
The Vitals app is like having a personal health assistant on your wrist. It tracks vital signs like heart rate, wrist temperature, respiratory rate, and sleep duration, giving you a comprehensive overview of your health. And the best part? It's all presented in an easy-to-understand format.
Dr. Cheung explains, "When two or more of your metrics are out of range, the app will notify you with potential reasons why. For instance, if your heart rate and wrist temperature are high, it could be due to illness or alcohol consumption."
With this information, you can make informed decisions about your body. Should you rest more today? Or maybe it's time for a check-in with your doctor if you're experiencing specific symptoms.
How to Set Up:
- Wear your Apple Watch for at least 7 days to set your typical range.
- Ensure a snug fit to capture accurate readings.
- Go to Settings > Vitals > Notifications to turn them on.
- For sleep tracking, set up Sleep Focus on your iPhone's Health app.
- Noise Notifications: Protecting Your Hearing
Your Apple Watch can also be your hearing guardian. The Noise app measures sound levels in your environment and alerts you when you're exposed to dangerously loud sounds. This feature is a game-changer, especially in today's noisy world.
"We believe it's important for users to understand how their environment impacts their hearing health over time," says Dr. Cheung. "That way, they can take action, whether it's moving to a quieter space or using hearing protection like AirPods Pro 2."
Apple even offers a Hearing Test with AirPods Pro 2 or 3, providing a baseline for your hearing health and personalized adjustments.
How to Set Up:
- Open the Watch app on your iPhone > My Watch > Noise > Noise Threshold and choose a decibel level based on WHO recommendations.
- Ovulation Estimates: Understanding Your Cycle
The Apple Watch's temperature-sensing capabilities are truly remarkable. With the Cycle Tracking app, it can estimate when ovulation occurs, thanks to its ability to detect nightly changes from your baseline temperature, caused by factors like exercise, jet lag, or illness.
"The unique two-sensor design improves accuracy by reducing bias from the outside environment, detecting changes as small as 0.1 degrees Celsius," Dr. Cheung explains.
How to Set Up:
- Open the Health app on your iPhone or iPad > Cycle Tracking > Get Started and follow the prompts.
- Ensure Track Sleep is set up on your Apple Watch with Sleep Focus enabled for at least 4 hours per night for 5 nights.
- Fall Detection: Your Safety Net
Fall detection is a feature many Apple Watch users swear by. It's especially beneficial for those with an active lifestyle, as it can recognize the unique motion and impact of falls during workouts, like biking.
If your watch detects a hard fall, it sounds an alarm, displays an alert, and even taps you on the wrist. You can dismiss the alert or contact emergency services. If you're immobile for around a minute, the watch automatically calls for help and messages your emergency contacts with your location.
How to Set Up:
- Open the Watch app on your iPhone > My Watch > Emergency SOS > Fall Detection and turn it on/off.
- Choose if you want it always on or only during workouts.
- Heart Health Notifications: Keeping an Eye on Your Heart
For users aged 13 and over with Apple Watch Series 1 or later, you can receive alerts if your heart rate is high or low or if it shows signs of an irregular rhythm, like atrial fibrillation.
"Mostly, you just need to turn them on, and they work passively in the background as you go about your day," Dr. Cheung says. "If your heart rate is unusually high or low, or if you have atrial fibrillation, you'll get a notification so you can take action."
Atrial fibrillation is the most common type of arrhythmia in adults and can lead to serious health issues if untreated. With the ECG app (available on Apple Watch Series 4 or later and all Apple Watch Ultra models), you can take an electrocardiogram test to record the timing and strength of your heart's electrical signals.
How to Set Up:
- Go to the Apple Watch app on your iPhone > My Watch > Heart > High Heart Rate and choose BPM > Low Heart Rate and choose BPM.
- Open your iPhone's Health app > Browse > Heart > Irregular Rhythm Notifications and enable them.
- Time in Daylight: The Benefits of Sunlight
Your Apple Watch's ambient light sensor can estimate your daily time in daylight, and if you manage a family member's watch, you can see their daylight exposure too.
"Spending around 20 minutes outdoors daily has physical and mental health benefits for adults, including essential vitamin D and mood boosts," Dr. Cheung notes.
For kids, time in daylight is crucial for vision health. "The International Myopia Institute recommends 80-120 minutes outside daily to lower the risk of nearsightedness," she adds.
How to Set Up:
- Ensure Motion Calibration & Distance is on in your iPhone's Settings app.
- Go to your iPhone's Health app > Browse > Other Data > Time in Daylight to view your daily exposure.
- State of Mind: Emotional Awareness
The Mindfulness app on your Apple Watch lets you log your emotions and daily moods, helping you identify feelings and notice patterns in your mental health. You can also take Reflect or Breathe sessions to learn more about your heart rate.
"Emotional awareness and regulation are vital for mental health, and we're excited to introduce tools like State of Mind," Dr. Cheung says. "Using State of Mind can create benefits for your mental well-being, help you identify insights and trends, and encourage you to check in with yourself using depression or anxiety assessments in the Health app."
How to Set Up:
- In your Apple Watch's Mindfulness app, tap State of Mind > Get Started.
- Log how you feel in the moment or overall for the day.
- Open your iPhone's Health app > Browse > Mental Wellbeing > State of Mind > Show in Charts to view your history and patterns.
- Sleep Apnea Notifications: A Silent Disorder
Sleep apnea is a disorder where breathing momentarily stops during sleep, often going undiagnosed. If left untreated, it can lead to serious health issues like hypertension, type 2 diabetes, and cardiac problems.
If your Apple Watch detects elevated breathing disturbances for over 30 days, you'll receive a sleep apnea notification. You can then create a PDF with sleep apnea data and breathing disturbance info to share with your doctor.
This feature is available on Apple Watch Series 9 or later and Apple Watch Ultra 2 or later, with the latest WatchOS and iOS versions.
How to Set Up:
- Set up Sleep on your iPhone's Health app.
- Wear your Apple Watch to bed for at least 10 nights over 30 days.
- Open the Health app > Browse > Respiratory > Set Up under Sleep Apnea Notifications > Next and follow the instructions.
- Handwashing: A Simple Yet Powerful Habit
With Handwashing, the Apple Watch Series 4 and later can detect when you start washing your hands and time you until you reach the recommended 20-second duration, as recommended by the CDC.
"We introduced this feature in 2020 to help users of all ages track their handwashing time, especially during the pandemic," Dr. Cheung explains. "It uses machine learning to detect handwashing motion and audio to confirm the sound of running water or soap."
How to Set Up:
- On your Apple Watch, open Settings > Handwashing and turn on the Handwashing Timer.
- You can also set up handwashing reminders on a managed Apple Watch.
And this is the part most people miss...
These hidden health features on your Apple Watch are not just about tracking data; they're about empowering you to take control of your health and make informed decisions. With these insights, you can live your healthiest life, backed by the power of technology.
So, which feature are you most excited to try? And what other health-related innovations would you like to see on your Apple Watch? Let's discuss in the comments!
