The findings suggests that devices such as smartwatches could be used to monitor and assess psychological states remotely without requiring the completion of mental health questionnaires.

Resilience, or an individual’s ability to overcome difficulty, is an important stress mitigator that reduces morbidity and improves the management of chronic diseases.

“Wearables provide a means to continually collect information about an individual’s physical state. Our results provide insight into the feasibility of assessing psychological characteristics from this passively collected data,” said first author Robert P Hirten, a clinical director at the Hasso Plattner Institute in Germany.

“To our knowledge, this is the first study to evaluate whether resilience, a key mental health feature, can be evaluated from devices such as the Apple Watch.”

Mental health disorders are common, accounting for 13 per cent of the burden of global disease, with a quarter of the population...