Coffee and health - Wikipedia, the free encyclopedia - 0 views
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Coffee contains caffeine, which acts as a stimulant. For this reason, it is often consumed in the morning and when feeling tired. Students preparing for examinations with late-night cram sessions or code jams frequently use coffee to stay awake.
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Zhapa EWSIS on 09 Dec 09This shows that many people drink coffee in the morning to start their day with energy. Whihc is somethimg good. But resourses state that coffee affects your health.
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A study comparing heavy coffee drinkers (3.5 cups a day) with non-drinkers found that the coffee drinkers were significantly less likely to contract Parkinson's Disease later in life. [7]. Likewise, a second study found an inverse relationship between the amount of coffee regularly drunk and the likelihood of developing Parkinson's Disease
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Coffee consumption is also correlated to a reduced risk of oral, esophageal, and pharyngeal cancer.[17][18] In ovarian cancer, no benefit was found.[19] In the Nurses Health Study, a modest reduction in breast cancer was observed in postmenopausal women only, which was not confirmed in decaffeinated coffee.[20] According to one research, coffee protects from liver cancer.[21]
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Blood pressure Caffeine has previously been implicated in increasing the risk of high blood pressure; however, recent studies have not confirmed any association. In a 12-year study of 155,000 female nurses, large amounts of coffee did not induce a "risky rise in blood pressure".
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Effects on pregnancy A February 2003 Danish study of 18,478 women linked heavy coffee consumption during pregnancy to significantly increased risk of stillbirths (but no significantly increased risk of infant death in the first year). "The results seem to indicate a threshold effect around four to seven cups per day," the study reported. Those who drank eight or more cups a day (64 U.S. fl oz or 1.89 L) were at 220% increased risk compared with nondrinkers. This study has not yet been repeated, but has caused some doctors to caution against excessive coffee consumption during pregnanc
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The study concluded that consumption of coffee is associated with significant elevations in biochemical markers of inflammation. This is a detrimental effect of coffee on the cardiovascular system, which may explain why coffee has so far only been shown to help the heart at levels of four cups (24 fl oz or 600 mL) or fewer per day.[42]
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Coffee intake may reduce one's risk of diabetes mellitus type 2 by up to half. While this was originally noticed in patients who consumed high amounts (7 cups a day), the relationship was later shown to be linear.[13][14]
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Coffee can also reduce the incidence of cirrhosis of the liver[15] and has been linked to a reduced risk of hepatocellular carcinoma, a primary liver cancer that usually arises in patients with preexisting cirrhosis.
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Coffee contains the anticancer compound methylpyridinium. This compound is not present in significant amounts in other food materials.
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Coffee consumption decreased risk of gout in men over age 40. In a large study of over 45,000 men over a 12-year period, the risk for developing gout in men over 40 was inversely proportional with the amount of coffee consumed.[32]
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Over 1,000 chemicals have been reported in roasted coffee, and 19 are known rodent carcinogens;[33] however, most substances cited as rodent carcinogens occur naturally and should not be assumed to be carcinogenic in humans at exposure levels typically experienced in day-to-day life.
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A 2007 study by the Baylor College of Medicine indicates that the diterpene molecules cafestol and kahweol, found only in coffee beans, putatively raise levels of low-density lipoprotein or LDL in humans.[36] This increase in LDL levels is an indicator that coffee raises cholesterol. The Baylor study serves to link cafestol and kahweol with higher levels of cholesterol in the body.
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A Harvard study conducted over the course of 20 years of 128,000 people published in 2006 concluded that there was no evidence to support the claim that coffee consumption itself increases the risk of coronary heart disease.
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for heart attack when drinking multiple cups of coffee a day due to genetic differences in metabolizing caffeine.[citation needed]