Why your wearable health tracker can make you feel anxious

Millions of people use a wearable health and fitness tracker. These devices can be useful for monitoring activity levels, sleep quality, and heart rate. But for some, wearables can have unintended consequences on well-being.

WHO chief in Ebola-hit DR Congo which sees first recovery

The UN health chief was on Friday in the Democratic Republic of Congo, where authorities are struggling to contain the spread of a deadly Ebola outbreak but the recovery of a patient, the first since the crisis began, was ...

What tick tests can—and can't—tell you

It's quick to spot a tick, but harder to know if that tick carries Lyme disease. Emergency room visits for tick bites provide important data for the Centers for Disease Control and Prevention, but doctors often cannot immediately ...

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