Smartphones increasingly help people track health and fitness regimens, but many are not properly informing users about how their data is handled, according to a study published in the British Medical Journal. Photo: Getty ImagesSmartphones increasingly help people track health and fitness regimens, but many are not properly informing users about how their data is handled, according to a study published in the British Medical Journal. Photo: Getty Images

Smartphones increasingly help people track health and fitness regimens, but many are not properly informing users about how their data is handled, according to a study published in the British Medical Journal. Photo: Getty Images

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