Warm hands, warm heart

We'll all heard the expression "cold hands, warm heart." But is there any truth to it? Some researchers say just the opposite may be true.

Scientists at Yale University have found that giving someone a hot cup of coffee to hold, made them warm up to a stranger. But giving volunteers a cold drink to hold had the opposite effect.

Another study gave students either a cold pack or a heating pad. Students with a heating pad were more likely to give a gift . The students with the cold pack were more likely to keep the gift for themselves.