"Let us tell the kids you are going to die at 40 isnt because your dumb as pig poo"
Wot??
It does matter how old organisms die if now days people are having kids in their 50s.
Evolutionary pressure would favor the tendency to crave calorie-dense foods. As someone else - Tatyana? - said, fat storage capability is related to female fertility. In-vitro sperm-bank kids created with donor eggs are IMO outliers, and in any event are far too recent to overcome evolutionary pressures to crave: Fat. Salt. Carbs.
And evolution is survival of the fittest. Not who breeds best and dies young.
I'm not an expert, but I think you have this exactly backwards.
This thread reminds me of an article I just came across:
Yeah, it's easy to rack up 2,000 calories. IMO evolution would have favored individuals who consumed every calorie they could. Though that behavior may be obsolete, the obsolescence is a very recent development.
It gets easier and easier to become obese every decade as food becomes cheaper and technology does the jobs we used to rely on our muscles to do.
YES!!! I once read that a secretary who switched from a manual typewriter to an electric would gain 2 pounds a year from that development alone. This was a long time ago and I can't vouch for the accuracy. But it made an impression. Using the stairs, parking farther away from stores and many other tactics help cancel out some of the sheer convenience of, say, clothes dryers vs. pinning up the laundry. To NZ, UK, Aussie readers, my suspicion is that the U.S. is more likely to encourage the lazy option.
At a huge pedestrian shopping area in Liverpool, the lack of obesity was noticeable to this American. Keeping services just slightly inconvenient did, IMO, develop a healthier population.
Personally (and I may be wrong) obesity in most cases is habitual rather than addictive. Which is why you need to educate the kids
A bit of both, I believe. A girlfriend of mine bought dumbbells, then asked for help getting them to the car. I'm not totally convinced I have this right but it's not hard to picture.
I live in an area where indigenous Americans have the highest rates of Type 2 diabetes in the world. Either something in the pre-European era protected them from genetic influences, or something introduced since (regular rations of white flour, lard and salt) increased their vulnerability. Perhaps sedentary lifestyles as well. This didn't play out as virtuous, high-willpower types being rewarded - it was a sudden clash of aboriginal diet vs. modern calorie-dense foods. While an individual who wants to lose weight bears some responsibility, I also see policies that have encouraged consumption of calorie-dense foods while decreasing traditional reliance on native (preventative?) foods; and a decreased reliance on manual labor.
Ergo weight gain, epidemic Type 2 diabetes and well-meaning experiments on traditional crops that may have mitigated the sudden introduction of calories in the form of sugar, starch, lard and alcohol.