> They found the elevated cardiovascular risk was consistent across socioeconomic groups, and strongest among smokers and people with diabetes or existing heart

> They found the elevated cardiovascular risk was consistent across socioeconomic groups, and strongest among smokers and people with diabetes or existing heart disease - suggesting they should be especially cautious about long-term, narrow eating windows. The link held even after adjusting for diet quality, meal and snack frequency, and other lifestyle factors, researchers found. Smoking makes it easier to skip meals, which is part of why people gain weight when they quit. Smokers who more likely only ate in 8 hour windows may just be heavier smokers than those who ate across 14 hour windows if there is a dose response relationship to the meal skipping. Diabetes also can make meals at certain times of day make you feel sick and more likely to be skipped (more examples beyond this, but look up dawn phenomenon with diabetes). They say all cause mortality is not much different blbut those two subgroups had the higher mortality compare with same subgroup that ate over a longer period. But it could just be heavier smokers skipping meals and more advanced diabetes case sufferers skipping breakfast unless controlled for separately (smoking amount and dawn phenomenon)