Caffeine and Health In the 1980s, a study linked coffee to a higher risk of heart disease and pancreatic cancer. In the early 1990s, studies showed that drinking coffee posed minimal health threats. However, in 1994, a study showed that pregnant women who drank 3 or more cups of tea daily may be at risk for miscarriage. In 1998, a study claimed that women who drank more than a half-cup of caffeinated tea every day may actually increase their fertility. In 1998, a study showed that ova a lifetime, a few extra cups of coffee a day can raise blood pressure, heart rate, and stress (Source: “Bottom Line: Is It Good for You? Or Bad?” by Monika Guttman, USA TODAY Weekend). Suggest some reasons why these studies appear to be conflicting.
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Elementary Statistics: A Step By Step Approach
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