> Everyone know fat people don't live long.
studies estimate that moderate obesity takes about 2-3 years of life expectancy (defined as having a BMI of 30-35), only people with severe obesity (BMI of 40-45+) lose on average 6-13 years, comparable to smoking.
Given that severe obesity is still uncommon even in the rich world it only has a small impact on life expectancy overall.
Combined with getting in your car and driving absolutely everywhere (most Americans)?
This is what people also don't realize. When these sorts of people get old they become immobile as they lose what precious little of actual muscle mass they had and unsupported joints start failing left and right. Sure your life expectancy might only be 2-3 years shy. What about your health span? That's what most people are actually interested in extending when they talk about living longer.
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Why do people on HN think the US is special about (quantity of) driving? All wealthy non-microstate nations are driving nations. And, they drive a lot. That includes Australia.
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