Your workout routine doesn't need a fancy name like "CrossFit" anymore—now we can just string numbers together and call them workouts? I kid...mostly. Because today I’m considering the 4-2-1 workout ...
The 4-2-1 rule is a tool that doctors use to diagnose severe cases of diabetic retinopathy, an eye condition affecting people with diabetes that can progress to vision loss. If high blood sugar levels ...
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