Heart Health

Fitness trackers: A path to a healthier heart?

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New, improved devices and apps may better guide you to exercise at the right intensity to help your heart.

Perhaps the best-known problem with fitness trackers is that people often retire them to a junk drawer after a few months, once the novelty of using them wears off. But that's not the only shortcoming with these devices, which are typically worn around the wrist or clipped to clothing.

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