

BMI isn’t a valid indicator of health for (young) people with lots of muscle mass from weight training (e.g., competitive athletes). Those people are a relatively small group in society, however. BMI is a somewhat valid indicator of health for most members of society, which makes it a reasonable population health metric. It has its drawbacks and there’s plenty of nuances to argue about but it’s very easy to use, and that handiness earns it its popularity
Makes sense to me. I was at my most sedentary during the pandemic. That sedentariness kind of became a new normal. I’m still trying to change that