Professor Manuel Garzon, a member of Granada's medical faculty, made the finding after tests on 25 students over several months. Researchers believe that it is the sugars, salts, and bubbles in a beer that may help people absorb fluids more quickly.
The subjects in the study were asked to run on a treadmill at temperatures of 104F (40C) until they were close to exhaustion. Once they had reached the point of giving up, researchers measured their hydration levels, motor skills, and concentration ability.
Half of the subjects were given two half pints of Spanish lager to drink, and the other half were given just water.
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