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Practice Reading: Multiple Choice, Multiple Answers
ID: #2913
caffeine
As a component of numerous over-the-counter diet pills and pain relievers, caffeine increases their effectiveness and helps the body absorb them more quickly. By constricting blood vessels in the brain, it can alleviate headaches—even migraines. Studies of runners and cyclists have shown that caffeine can improve their stamina—hence its addition to energy boosting sports drinks and increased physical endurance, have also been attributed to caffeine.
Caffeine is used to treat and why some athletes use caffeine?
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