NEW YORK -- Researchers say they've documented an unseen drag on major league baseball players that can wipe out home field advantage, make pitchers give up more home runs, and take some punch out of a team's bats.
The culprit: jet lag.
Travelers are well aware of the fatigue, poor sleep and other effects that can descend like a fog when their body clocks are out of sync with their surroundings. The new work adds to previous suggestions that professional athletes are no different.
Dr. Ravi Allada of Northwestern University said he and his colleagues wanted to study the effects of body clock disruptions on human performance.