For many of us, the colder the outdoor temperature, the colder we feel indoors, so we pile on the comforters and maybe an extra blanket on the bed to keep us warm. We may even crank up the thermostat a couple degrees. But, is this the right thing to do?

Keeping your bedroom cool, even during the winter months, is better for your health. Scientists at the National Institutes of Health found that sleeping at 66 degrees not only boosted energy, it also improved insulin sensitivity, according to an article published in AARP Magazine. Keep it 66l, you'll feel better.

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