Smaller sensors, longer-lived batteries and more sophisticated algorithms to interpret ever more data are combining to make wearable technology more practical and comfortable, writes Philippe Kahn, co-founder of Fullpower Technologies. The uses are many but "some of the most promising applications of wearable technology may be in the monitoring, prevention, treatment or even cure of medical conditions. For people with chronic conditions such as obesity, sleep apnea, diabetes, heart disease or Alzheimer's disease, wearable medical devices can make a huge difference in their quality of life," Kahn writes.

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