Mind
How healthy is your brain? We now know how to find out
In our efforts to keep our brains healthy, how do we know what is working? Helen Thomson explores a new generation of tests that can reveal whether our efforts are paying off
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In our efforts to keep our brains healthy, how do we know what is working? Helen Thomson explores a new generation of tests that can reveal whether our efforts are paying off
Smartwatches commonly use heart rate variability to monitor stress. Columnist Helen Thomson explores what this metric actually tells us, and whether it could also predict and diagnose depression – and help improve your mental health more generally