Researchers have found that smartphones and smartwatches can be used to accurately detect if you're having a heart attack, proving that mobile technology could ultimately be life-saving for people with heart problems.
For the study, researchers tested an app that uses a electrocardiograph (ECG) lead to monitor your heart rate, and found that it was almost as accurate at diagnosing a heart attack as the standard 12-lead ECG used by medical professionals.
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