介绍:
With obesity a factor in Covid-19 vaccine eligibility, many Americans are scrambling to find out their body mass index, or BMI.
But experts say the meaning behind those numbers -- and how to lower them -- isn't always so clear-cut.
The US Centers for Disease Control and Prevention lists obesity as an underlying medical condition, and defines it as someone who has a body mass index of 30 or higher but less than 40. Having a high BMI, however, doesn't necessarily mean you're unhealthy.
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