Just saw a video from 1982, noticed how much thinner people were. Remarkable increase in fatness across the board in just 34 years.
Thought of a couple new possibilities re the increase in weight: 1. Food tech has improved to make food more delicious, causing more eating
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2. Food variety has increased, and people eat more when their diets are less monotonous.
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Basic idea is food is more appealing (competitive pressures help this along) -> people eat more
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Obviously this is a complex issue and I know these theories would only explain some of the change.
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There's two big facts - the time series increase, and the poor being fatter than the rich. Hard to find a theory that fits both.
End of conversation
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