If you're a true sports fan, you've probably lost sleep wondering if jet lag affects the performance of your favorite teams.You're not the only one.To answer this important question, scientists analyzed three years of major league baseball games to see if they could find a link between jet lag, and home field advantage.They discovered that baseball teams playing at home won over half the time.However, if the visiting team had just traveled eastward, say, from L.A. to New York, the home team scored more runs.If the visiting team had just traveled west, this didn't affect the point spread.These findings support other studies that show that traveling east is harder on your body than traveling west.