One of the running journals published a story about a runner who felt so tired near the end of a marathon that he stopped and drank some vodka. It rejuvenated him so much that he sprinted toward the finish line and passed many runners. Alcohol affects your brain so when the runner thought that he was passing other runners, they were actually passing him. The only athletes helped by alcohol are shooters.
Alcohol can make their hands more steady.
A recent report from Rutgers shows that alcohol markedly decreases endurance. Alcohol reduces the force of the contractions of your heart so that it can't pump as much blood through your body. It increases the amount of oxygen that your body needs, so you tire sooner. It increases sweating so you dehydrate earlier, and it causes muscles to use up stored carbohydrate faster so your muscles feel heavy and hurt. The Rutgers researchers asked female exercisers to pedal a bicycle for thirty minutes at a brisk pace.