Answer
Up to 3-4 cups of coffee of caffeinated soft drinks are unlikely to cause health problems. Caffeine has been shown to improve mental function and memory and to decrease fatigue. However, caffeine is highly addictive and has been shown to increase blood pressure, particularly in those who are exposed to it infrequently. In addition, researchers at Tufts University have also found that daily soft drink consumption may decrease bone mineral density in women.
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