75% American are overweight..
Just let it sink a second, they speak about how many baby born after 2000 will reach 100 years old, how we are reaching the absolute limit of human survival.
75% overweight... Everyone know fat people don't live long. I bet all the studies done in the 90's that predicted we would easily be able to reach 100 years old didn't take that into account.
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.
This is really hard to believe. Moderate obesity has to shave at least 10 years off life expectancy.
A 70 year old man 6' tall with a BMI of ~35 weighs 260 lbs. That is pretty overweight.
Anecdotally, I just don't see many people that overweight or heavier making it into their 80s.
When you're old, setbacks that cause you to lose your appetite are much more common and much bigger threats to the health of skinny people.
I don't know where you live, but I've met tons of moderately fat people in their 70s and 80s.