A confession: I absolutely hate going to the doctor and have avoided doing so for an embarrassingly long time. I knew I needed some sort of status update on my overall well-being, though, which inspired me to sign up for Function Health, a new personalized blood-testing company. For about $500 a year, you get a full assessment of your heart, hormones, thyroid, immunity, and seemingly every other aspect of your health.
Here’s what I learned—and what experts make of the startup.
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