According to HT Tech, the policy researcher, Sneha Sinha, noticed heart palpitations and decided to use her watch to monitor herself. Eventually, she sought medical help, and while visiting the hospital, she kept monitoring her condition using the watch. Also Read: Apple Watch feature saves US student’s life after exposure to deadly gas. Here’s how "I don't have any pre-existing health conditions. As an avid traveller, I hike and trek in high-altitude mountain regions above 15,000-16,000 feet where oxygen levels are often low,” Sinha told the outlet. "Once I got back home after a usual day, I noticed heart palpitations and used my Apple Watch to monitor it.

Despite repeated checks and ECGs showing a higher heart rate, I tried deep breathing, hoping it would resolve in sometime. I thought it may have occurred due to some reason and should calm down soon. I did not take it seriously initially. When it persisted for over 1.5 hours, the ECG indicated the onset of Atrial Fibrillation (AFib). At that point, I decided to seek medical attention and called a friend to take me to the hospital," she added. Also Read: Doctor uses Apple Watch to save woman’s life while on a flight. Here’s how Her email to Apple CEO Tim Cook: "I wanted to express my deep gratitude for developing such precise and advanced heart monitoring features.

The Apple Watch has demonstrated how innovation and technology can revolutionise healthcare and save lives... I found his email address on the internet," Sinha said to the outlet. She then claimed that she also received a reply from the CEO. "After I shared my story with Tim, within just a few hours he wrote back saying- I'm so glad you sought medical attention and received the treatment you needed. Thanks so much for sharing your story with us," she told HT Tech.