The ability to move with speed, precision and power is important for longevity. Here’s how to gauge it and how to improve.

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Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Vikki Velasquez is a researcher and writer ...

We have tried and tested dozens of fitness trackers, smartwatches and smart rings — these are the top 12 wearables that should land in your cart this January. When you purchase through links on our ...