# Coffee Statistics - Math 126

by Cody
(Manchester, NH, USA)

In an article in USA Weekend, this statement was made: :More serious seems to be coffee's potential to raise blood pressure levels of homo-cysteine, a protein that promotes artery clogging. a recent Norwegian study found 20% higher homo-cysteine in heavy coffee drinkers (more than 9 cups a day) than in non-coffee drinkers." Based on this statement, should we give up our daily cup of coffee?

### Comments for Coffee Statistics - Math 126

 Apr 07, 2012 Coffee Statistics - Math 126 by: Staff Part I Question: by Cody (Manchester, NH, USA) In an article in USA Weekend, this statement was made: :More serious seems to be coffee's potential to raise blood pressure levels of homo-cysteine, a protein that promotes artery clogging. a recent Norwegian study found 20% higher homo-cysteine in heavy coffee drinkers (more than 9 cups a day) than in non-coffee drinkers." Based on this statement, should we give up our daily cup of coffee? Answer: Based on this statement, should we give up our daily cup of coffee? I wouldn’t. USA Weekend is trying to sell more issues of their magazine by using inflammatory language. According to the article, if you’re only drinking one or two cups of coffee each day, the homocysteine levels should not increase significantly. The article states that a 20% increase in homocysteine levels occurred when drinking over 9 cups of coffee a day. It is worth noting that the article does not state how many variables were taken into account when the study was completed. Unless only one variable was scientifically tested, the article is nothing more than anecdotal evidence. For example, were the participants in the study doing other things which could increase homocysteine level (such as smoking cigarettes, eating large meals each day, or not exercising)? Unless all other variables can be ruled out, the results of the study are invalid. The article does not define what “more serious” means. More serious than what? The article does not say what methodology was used in the study, or how many patients were studied (did the study compile results from 5 patients, or 50,000 patients?). What were the control groups: children, old men, vegetarians, athletes, people from a specific location (such as Oslo, Norway), etc? The article is vague about the effects of homocysteine. The article does not say what the exact relationship is between elevated levels of homocysteine and artery clogging. ----------------------------------------------------------