AT ANY GIVEN MOMENT, you can tap into a wealth of information about yourself. Trackers, WiFi scales, smart clothing, and other gadgets continue finding new figures to dump on you—without necessarily explaining what to do with them. Simply put: We’re drowning in health data, and we can’t stop asking for more. Experts warn that the constant chirping of devices can lead to a fixation that’s often more about ego than understanding your body.
100 Ways to Live to 100
And all that nitty-gritty won’t necessarily give you an edge, either. To live a longer, healthier life requires knowing the statistics that actually matter. Here are the nine numbers to keep an eye on—and how frequently (daily, monthly, or yearly) to check in on each.
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