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Overcoming Bias Commenter's avatar

It's probably fruits and vegetables aren't as healthy as we think, especially salads.Also if your actually poor, you don't eat cakes and burgers, you eat rice and beans. That's why they are better. McDonalds isn't cheap, paying 5 bucks a meal is a lot for a lot of people i know.

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Overcoming Bias Commenter's avatar

It is very difficult to show statistically that life style change decreases death rate. For instance prospective studies of cholesterol lowering lowering by diet finally succeeded in showing that cardiovascular disease was reduced but the death rate remained the same. Now using satins on healthy populations the death rate has not been reduced. These are prospective studies,the best kind.

With this in mind,combining the two separate retrospective studies such as the ones mentioned will generate hypotheses that are entertaining or humorous at best.

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