Today's Wearable Computers/Devices to Keep Track of Calories,

Today's Wearable Computers Help You Sleep, Not Tweet

By NICK BILTON

It might be another decade before social network updates flash to us through wearable screens and contact lenses. Yet wearable computing is already here to help people track some aspects of health, like sleep patterns, and view the results through a smartphone.

Devices to Keep Track of Calories, Lost or Gained

By ROY FURCHGOTT

Monitors designed to gauge physical activity and subsequent calories burned might become a silver bullet for weight loss and for sticking to New Year's resolutions.