On Thu, 8 Dec 2016 14:01:05 -0500 (EST), justan wrote:

US life expectance dips for the first time since 1993

I would be more likely to blame it on our diet and lack of exercise.
Mom is not home cooking tasty and nutritious dinner anymore. People
today are just ordering a pizza or stopping at a fast food joint.
"Cooking" is microwaving some kind of prepared food that is generally
high in fat and sugar. Our average weight is creeping up every year.
Exercise is walking to the fridge for some ice cream.