Causation or correlation?-----Instapundit - IF YOU’RE OLD, being fat improves life expectancy.

It may just be a marker for the people who aren’t wasting away with sarcopoenia

"IF YOU’RE OLD, being fat improves life expectancy. 

We’ve seen other studies to this effect. 

It may just be a marker for the people who aren’t wasting away with sarcopoenia, though, rather than any specific benefit to being fat. - Glenn Reynolds