Study finds that Apple Watch can accurately predict stress levels

According to research conducted at the University of Waterloo in Canada, the Apple Watch has the potential to accurately predict stress levels.

The study utilised the Apple Watch Series 6's ECG sensor and found a close relationship between heart rate data and participants' self-reported stress levels. Machine learning algorithms were then developed using this information to create a prediction model.

The researchers suggest that incorporating additional data points, such as sleep and activity information, could improve the accuracy of the stress prediction model. They also propose that the Apple Watch could be utilised to support mental health care by offering stress-reducing activities like breathing exercises and providing early intervention for changes in mental health.