Tim Worstall suggests that the real reason for our collective expanding waistlines isn’t evil capitalist exploiters pushing us to eat unhealthy fast food:
We don’t, for example, eat more than our forefathers did. Sure, we can all play games with how much people lie on those self-reported surveys about calorie intake. True, to make sense of it being lies we’d have to assume that people lie more now than they used to. So, instead, let’s look at official guidance. In WW1 the aim was, for the Army, to stuff some 4,300 calories a day into each frontline soldier out there in the trenches. Something they largely achieved too. In WWII rationing peeps started to worry that diets of less than 2,900 calories a day would lead to weight loss. Today official guidance is that 2,500 a day for men, 2,000 for women. Well, that’s the last one I recall at least.
I suspect that people actually do lie more on self-reporting surveys of that kind than they once did, if only because we’ve had several decades of prissy lecturing about what we should consume … the temptation to shade the answers in the “right” direction I’m sure plays some part, but not enough to explain the obesity crisis. If you doubt that this happens, remember that a significant number of people vote for the party they expect to win rather than the party that best represents their interests or desires. Sucking up to teacher is a very common psychological trait.
However, back to the swelling obesity numbers:
Actually, 40 years ago is about when central heating became a commonplace in Britain. Anyone of my maturity in years – which includes G. Monbiot – and even those from thoroughly upper middle class backgrounds – both me and G. Monbiot – will recall ice on the inside of bedroom windows in winter. Houses simply were not fully heated throughout. Actually, pretty much the entire country was in what we’d now call fuel poverty. That fuel poverty that we have standards for these days, you should be able to heat the entire house to such and such a temperature on less than 10% of income. A standard which just about no one pre-1950 reached, few pre-1970 did.
America had that heating rather earlier than we did. Americans also became land whales that little bit earlier than we did. Anecdata I know but a move to the US in 1981 was marked with an observation of how warm Americans kept their houses in winter.
We do actually spend quite a lot on all this public health stuff these days. It might be worth someone doing a little study of correlations. Different nations became lardbuckets at different times. Different nations adopted central heating as a commonplace at different times. Why don’t we go see what the correlation between those two is?
After all, the idea that mammals use some significant portion of their energy intake for body temperature regulation isn’t exactly fringe science, is it?
