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Here is a list of studies that Old Rock found:

  • Harvard study (Harvard School of Public Health) found that men who drank more than six 8oz cups of coffee per day lowered their risk of type 2 diabetes by about half, and by nearly 30% for women, relative to coffee abstainers (those who don’t drink coffee). Sample was 128,000 people.
  • People who don’t drink coffee have five times the risk of contracting Parkinson’s as thos who drank four to five cups of coffee a day; this study was from the Journal of American Medical Association based on 8,000 Japanese men. Note that eight other studies found that coffee protected against Parkinson’s.
  • Studies in the US, Japan and Italy showed that drinking four cups of coffee a day was associated with an 80% reduction in cirrhosis of the liver, compared with not drinking any coffee.
  • US and Italian studies found that three or more cups of coffee a day decreased prevalence of asthma.
  • A 10-year study of 45,000 men found that two to three cups of coffee a day reduced the risk of developing gallstones by 40%. The journal of the American Psychological Society reported that caffeine can boost memory in elderly people who drank one or two cups of coffee in the morning by raising calcium levels in their braincells. Coffee has also been found to improve long-term memory as well as psychomotor skills.
  • A study by the Cancer Epidemiology Training Program at the University of California at Los Angeles School of Public Health indicated that coffee could lower the risk of prostate cancer.