Because of a pulmonary embolism: Apple’s watch saved a 29-year-old from death while sleeping.

Stories about Apple Watch’s abnormal heart rate alerts and how they saved human lives are no longer rare, but this time the watch saved a young woman in an unusual situation for her age. This is how you activate the life-saving feature on your watch.

These stories mainly appear in Apple’s announcements, about how the heart rate monitoring and detection of abnormal situations in their watch has saved human lives many times – but this time it saved the life of a 29-year-old woman from Cincinnati named Kimmy Watkins, who detected a pulmonary embolism in her, which allowed her to get medical treatment On time.

Apple’s watch (similar to other watches), measures the heart rate throughout the day and whenever you wear it, but also detects a high or abnormal heart rate while resting. At Watkins, he detected a heart rate of 178 while she was sleeping after she felt dizzy and tired, the clock of course started beeping and woke her up from her sleep.

Watkins, not feeling well, sought medical help and was diagnosed with a pulmonary embolism, a life-threatening condition with a 50 percent chance of death. The watch, of course, saved her life. “I’m very lucky, and if my sleep hadn’t been disturbed, my partner would have found me asleep on the couch or not really asleep,” Watkins told 9to5Mac.

How does the watch measure heart rate? The optical heart sensor in the Apple Watch uses a technology called photoplethysmography. Although the name of this technology is difficult to pronounce, it is based on a simple fact: the color of blood is red because it reflects red light and absorbs green light.

How will you enable heart rate monitoring using the Apple Watch?

By default, the watch tracks your heart rate for the Heart Rate app, for workouts, and for sessions of the Breathe and Meditate apps. If you have turned off heart rate data, it can be turned back on.

Open the “Settings” application on your watch.

Go to “Privacy & Security” > “Health”.

Click on “pulse” and turn on “pulse”.

You can also open the Apple Watch app on your iPhone, tap My Watch, tap Privacy, and turn on Heartbeat.

You can also turn on heart rate updates to know if your heart rate stays above or below a selected beats per minute (bpm) value, or to check occasionally for irregular heart rate events.