iPhone

You can wear Apple Watch to bed and track breathing disturbances while you’re sleeping. These measurements can be used in an algorithm to detect signs of moderate to severe sleep apnea (not available in all countries or regions).

Each day, you’re given an assessment of your breathing disturbances for the night before. If those disturbances come up more often over a 30-day period, you receive a notification of possible sleep apnea, along with a PDF to discuss with your healthcare provider.

Important: Your Apple Watch is not a medical device and is not intended to replace talking with your doctor for diagnosis, treatment, or monitoring of sleep apnea.

Note: Sleep apnea notifications are not intended for use if you have diagnosed sleep apnea, or are under 18 years old.

Set up sleep apnea notifications

1. Open the Health app on your iPhone.
2. Tap your picture or initials at the top right.
3. Tap Health Checklist and tap Set Up below Sleep Apnea Notifications. Follow the onscreen instructions.

Review your breathing disturbances data

1. Open the Health app on your iPhone.
2. Tap Browse, tap Respiratory, and tap Breathing Disturbances.

Turn off sleep apnea notifications

1. Open the Health app on your iPhone.
2. Tap your picture or initials at the top right.
3. Tap Health Checklist and tap Sleep Apnea Notifications. Then turn Sleep Apnea Notifications off.

See also

• Change notification settings on Apple Watch

Cycle Tracking in the Health app on iPhone can provide notifications when your logged cycle patterns are suggestive of perimenopause. After logging perimenopause or menopause in the Health app, you can track related symptoms in the Cycle Tracking app.

It’s simple. You can log symptoms like hot flashes, night sweats, and sleep changes, and log bleeding after menopause, too, and if you do, you receive a notification recommending that you contact your doctor.

Important: Cycle Tracking in the Health app should not be used for birth control or to diagnose a health condition. Cycle deviation notifications are based solely on the user’s logged cycle history. Cycle deviation notifications inclusive of perimenopause are for ages 40 and above. These notifications are not intended to replace traditional methods of diagnosis, monitoring, or treatment of perimenopause or menopause.

Log stages of perimenopause or menopause

1. Open the Health app on your iPhone.
2. Tap Browse, then tap Cycle Tracking.
3. Scroll down, then tap Menopause Stages.
4. Tap the Add button and tap Next.
5. Do one of the following:
   • Log perimenopause: Tap I’m in perimenopause.
   • Log menopause: Tap I’ve reached menopause.

   To learn more, tap “Learn About Perimenopause and Menopause.”

6. Follow the onscreen instructions.

To track menopause after perimenopause, tap Menopause Stages, tap the Add button, then follow the onscreen instructions. Your perimenopause history is saved and all cycle deviation detection, predictions, and fertile window estimates are turned off.

With perimenopause or menopause logged, you can also log related symptoms such as hot flashes, sleep changes, night sweats, and more.

Log bleeding after menopause and other symptoms

1. Open the Cycle Tracking app on your Apple Watch.
2. Swipe to select a day and then tap Log.
3. Tap Bleeding After Menopause, tap Had Bleeding and tap a bleeding level. Then tap the Done button.

Note: When you log bleeding after menopause, you receive a notification recommending that you contact your doctor.

Wear your watch to bed, and Apple Watch can estimate the time you spent in each sleep stage—REM, Core, and Deep—as well as when you might have woken up.

When you wake up, open the Sleep app to learn how much sleep you got and see your sleep trends over the past 14 days, including your sleep score. You can also review your sleeping respiratory rate.

Here’s how to track your sleep on Apple Watch.

View your recent sleep history

Go to the Sleep app on your Apple Watch to see your sleep score, the time you spent in each sleep stage, the amount of sleep you got the night before, and your sleep average over the last 14 days.

To see your sleep history and sleep score on iPhone, go to the Health app on iPhone, tap Browse, then tap Sleep. For more details, tap Sleep or Sleep Score.

Change sleep settings

1. Start the Settings app on your Apple Watch.
2. Tap Sleep and then adjust these settings:
   • Turn On at Wind Down: By default, the Sleep Focus begins at the wind down time you set in the Sleep app. If you’d prefer to control the Sleep Focus manually in Control Center, turn this option off.
   • Sleep Screen: Your Apple Watch display and iPhone Lock Screen are simplified to reduce distractions.
   • Show Time: Show the date and time on your iPhone and Apple Watch while the Sleep Focus is active.
3. Turn Sleep Tracking and Charging Reminders on or off.

   When Sleep Tracking is on, your Apple Watch tracks your sleep and adds sleep data to the Health app on your iPhone.

   Turn on Charging Reminders to have your Apple Watch remind you to charge your watch before your wind down time and notify you when your watch is fully charged.

   You can also change these sleep options on your iPhone. Open the Apple Watch app on your iPhone, tap My Watch, then tap Sleep.

Review your sleeping respiratory rate

Your Apple Watch can help track your breathing rate as you sleep, which can give you greater insight into your overall health. After wearing your watch to bed, do the following:

1. Start the Health app on your iPhone.
2. Tap Browse, then tap Respiratory.
3. Tap Respiratory Rate and tap Show More Respiratory Rate Data.

   The Sleep entry shows the range of your respiratory rate as you’ve slept.

Note: Apple Watch is not a medical device, and Respiratory Rate measurements are not intended for use in medical diagnosis, treatment, or for any other medical purpose.

Turn off respiratory rate measurements

1. Start the Settings app on your Apple Watch.
2. Tap Privacy & Security and tap Health.
3. Tap Respiratory Rate, then turn off Respiratory Rate.

You can also open the Apple Watch app on your iPhone, tap My Watch, tap Privacy, then turn off Respiratory Rate.

See also

• View your sleep score on Apple Watch
• Set up sleep schedules on Apple Watch

When you log your menstrual cycle, you can check the predicted date for your next period or fertile window, receive notifications about when your next period or fertile window is expected to be approaching, view details about your cycle history, and more.

A timeline at the top of Cycle Tracking shows predicted period days and more, and you can check the dates for your predicted next period and your reported last period.

Here’s how to view menstrual cycle predictions and history in Health on iPhone.

Note: Health can also use data from Apple Watch to improve the predictions for your period and fertile windows.

View your cycle timeline

Tap Browse, then tap Cycle Tracking.

At the top of the screen, a timeline shows the following icons.

To select different days, swipe the timeline.

Check the dates for your predicted next period and for your reported last period

1. Start the Health app on your iPhone.
2. Tap Browse, then tap Cycle Tracking.
3. Scroll to Highlights to see when your next period is likely to start.

If you don’t see the estimate, tap Show All next to Highlights.

4. Scroll to Summary to see the date of your last period and your typical cycle length.

If you don’t see a period prediction, make sure you have Period Predictions turned on in Options.

View your cycle history

1. Start the Health app on your iPhone.
2. Tap Browse, then tap Cycle Tracking.
3. To see a summary of your last three cycles, scroll down to Your Cycles.
4. To see summaries of all previous cycles, tap Cycle History.

To send or a save a PDF of your cycle history, tap Export PDF, tap the Share button, then choose an option.

5. To see details about a cycle, tap it.

To change any details for the cycle, tap Edit.

To send or a save a PDF of the cycle details, tap Export PDF, tap the Share button, then choose an option.

If you receive a Cycle Deviation notification

If your logged cycle history shows a possible cycle deviation, you can get a notification. Common cycle deviations include irregular periods, infrequent periods, prolonged periods, and persistent spotting. They may indicate an underlying condition, or they may be due to other factors.

When you receive a notification, do the following to review your logged cycle history:

1. Start the Health app on your iPhone.
2. Tap Review Cycle History in the Possible Cycle Deviation notification.
3. Follow the onscreen instructions to confirm, add, or edit the data in your cycle history.

If a cycle deviation is detected, a screen suggests what to do next.

View your cycle summary

A summary shows your last menstrual period, typical cycle length, typical period length, ongoing factors, and more.

1. Start the Health app on your iPhone.
2. Tap Browse, then tap Cycle Tracking.
3. Scroll down then tap Summary.
4. Scroll to view statistics of your last year of data.

Change cycle tracking notifications, cycle prediction displays, and other options

You can hide period and fertility predictions, turn off period, fertility, and cycle deviation notifications, and more, then turn any of these back on at any time.

1. Start the Health app on your iPhone.
2. Tap Browse, then tap Cycle Tracking.
3. Scroll down, tap Options, and then turn options on or off.

About your health data and privacy

Per Apple, the information you add about yourself in Health is yours to use and share. You can decide what information is stored in Health as well as who can access your data.

When your iPhone is locked with Face ID, Touch ID, or a passcode, all of your health and fitness data in Health, other than your Medical ID, is encrypted. Any health data synced to iCloud is encrypted both in transit and on Apple servers. And if you have a version of iOS, iPadOS, and watchOS (if you’re using iPad and Apple Watch for cycle tracking) with default two-factor authentication and a passcode, your health and activity data is stored in a way that Apple can’t read it.

This means that when you use the Cycle Tracking feature and two-factor authentication, your health data synced to iCloud is encrypted end to end, and Apple doesn’t have the key to decrypt the data and therefore cannot read it.