People who identify with the “Quantified Self movement” are, as expressed in the movement’s motto, seeking “self-knowledge through self-tracking.” They want to know how to sleep better, stay fit, or ...

When I meet a friend for coffee, she first takes out her phone, as she explains, to check that her fitness app has calculated her steps from her car to our café. Another friend joins us just in time ...

Time Magazine's post-Apple Watch cover story suggests that Apple might finally bring wearables into the mainstream in a way they've never been before -- and that this might not be a good thing.