What is this strange pattern down the east coast of America?

Nardose on Instagram: "Take a guess 👇🏾it’s not fat 1. You can be “fat” and still be healthy Some people: • have stable blood pressure • normal blood sugar • good cholesterol • good stamina • active lifestyle • healthy organs …even if they’re in a higher weight category. This is because health = metabolic function, not just body size. There are people who wear a size 2 and can’t walk up stairs. There are people who wear a size 16 and can run 5 miles. Bodies are different. 2. BUT… extra body fat