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PART 1:
According to Goldstein et al. (2010), consumption of caffeine showed significant improvement in alertness and cognition in non-exercising adults. The study also concluded that individuals showed great difference when the dose of caffeine was increased from 100mg/day to 200 mg/day. But statistically, the results were same when the dosage was increased to 300 mg/day. Similarly, according to another study conducted by Christopher et al. (2005), individuals were assessed on 5 attributes; mood, focussed attention task, categorical search task, simple reaction time and repeated digits task. In conclusion, ...