There are currently tens of thousands of connected health apps. They range from mere gadgets to genuinely useful devices. The most common seems to be the activity tracker worn by runners. It analyzes personal data such as the number of steps taken and the wearer's pulse, then sends the data to a smartphone, where an app calculates information such as the number of calories burned. Other examples include “smart forks” for monitoring diets, which communicate with equally smart scales. Similarly, a smart toothbrush can check that its user is brushing properly and prevent cavities or tartar from developing. It can also send information about the user's brushing to the dentist.
Connected health devices collect still other data, such as temperature, heart rate and all kinds of test results.
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Helping people with chronic conditions
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