The Cold Shoulder
Science says your body burns more calories when it’s slightly chilled, so why not wear an ice vest every day? The Cold Shoulder, a $150 ice pack developed by a NASA scientist, claims to burn fat 70 percent faster than dieting alone. Just wear the vest up to three hours each day (two 90-minute sessions) on an empty stomach, and try to ignore the discomfort.
Better option: Turn down your thermostat or head outside for a brisk walk.
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