The debate over obesity, it turns out, is a lot like the debate over global warming. In both cases, major companies protect their profits not only by lobbying against policies they don't like, but also by financing advocacy groups devoted to debunking research whose conclusions they don't like. - Paul Krugman
All diseases are like a costly game of Russian roulette
“ Genetics loads the gun;
the environment pulls the trigger.” -George Bray
What are leading theories in our environment making obesity worse?
Lack of exercise
Inadequate sleep. (Average sleep amounts have fallen, and many studies tie sleep deprivation to weight gain.) Increases ghrelin.
Endocrine disruptors, which are substances in some foods that may alter fats in the body. (HFCS)
Nice temperatures. (Air conditioning and heating limit calories burned from sweating and shivering.)
Fewer people smoking. (Less appetite supression.)
Medicines that cause weight gain.
Population changes. (More middle-agers and Hispanics, who have higher obesity rates.)
Older birth moms. (That correlates with heavier children).
Genetic influences during pregnancy.
Darwinian natural selection. (Fat people outsurvive skinny ones).
Assortative mating, or "like mating with like," as Allison puts it. Translation: fat people procreating with others of the same body type, gradually skewing the population toward the heavy end.
And possible bacteria in the gut! (Did the bacteria or obesity come first?)
Are you fat? It Could Be the Air Conditioner By MARILYNN MARCHIONE, AP Medical Writer
Our economy has become more centralized and profit driven
Our educational and public health systems need to focus on sustainable long-term needs for both individual and social growth
What is in our food supply? We add 77.2 grams of fat and 29.7 grams of caloric sweeteners per capita into our food supply. This makes high calorie food very cheap! Source: USDA (2006)
The simple carbohydrate breakdown Early in 2005 a pound of beet sugar cost 24 cents but high fructose corn syrup cost about half as much 13 cents a pound. HFCS has become a very common and cheap sweetener.
High fructose corn syrup inhibits leptin (the satiety controlling hormone) and raises triglycerides in blood
K. Neff, S.Elliot, M. Tschop, Dietary Fructose Reduce Circulating Insulin and Leptin Attenuates Postprandial Suppression of Ghrelin and increases Triglycerides in Women (2004) Journal of Clinical Endocrinology & Metabolism