I found it very good news that happiness was maximized at 57 degrees Fahrenheit.....I've worked hard to reduce my ecological footprint, believing in "right sharing of earth's resources"....and have been keeping my thermostat at 55* for years. (and yes, I wear many layers and a scarf inside all winter, but it gets harder as I get older - just turned 65). So now, even thought it'll increase my footprint, maybe it's justified to bump it up 2 degrees????
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