- Coffee Science Information Centre (#)
„However, its effects on alertness are valuable in many everyday situations. For example, there is growing evidence that caffeine intake from coffee can increase alertness in car drivers and hence reduce accidents. Sleep-related car accidents show peaks in the early morning and the early afternoon. An intake of 150 mg caffeine in coffee has been shown to significantly reduce driving impairments, subjective sleepiness and electroencephalographic (EEG) activity indicating drowsiness in early afternoon driving tests (1).“
http://www.cosic.org/.../ habituation-withdrawl-tolerance-reinforcement-and-dependence - Cached
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- Coffee Science Information Centre
„Data were prospectively collected at three time points during gestation on coffee, tea and caffeine intake and on a wide variety of confounders. After adjustment for most of the confounders, coffee, tea or caffeine consumption were significantly associated with reduced birth weight. However, when the data were also corrected for smoking, these associations were no longer significant. In a prospective cohort study which recruited 431 pregnant women and identified all spontaneous abortions after day 21 of gestation and made 7 prospective assessments of caffeine intake, there was no association between caffeine intake and early foetal growth as assessed by crown-rump length on ultrasonic examination (16).“
http://www.cosic.org/coffee-and-health/ pregnancy
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„FACT: Both the American MedicalAssociation's Council on Scientific Affairs and the National Cancer Institute haveconcluded that there is no association between caffeine intake and fibrocystic breastdisease. According to Laurie Green, M.D., an obstetrician-gynecologist with the CaliforniaPacific Medical Center in San Francisco, "Many women wonder whether lumpiness in thebreast tissue is due to caffeine. Studies show that benign breast disease - which is thelumpiness - has absolutely no link to caffeine. I feel completely comfortable with mypatients consuming moderate amounts of caffeine," she added.“
http://www.koffeekorner.com/health7.htm
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„When the caffeine intake is reduced, the body becomesoversensitive to adenosine. In response, blood pressure drops dramatically, resulting inan excess of blood in the head, leading to the 'caffeine headache.' This headache can lastfrom one to five days, and can be alleviated with an analgesic or with caffeine intake.Further withdrawal symptoms may include irritability, muscle tension, inability toconcentrate or work, and, in extreme cases, nausea and vomiting. Withdrawal symptoms canbegin just 12 hours following your last caffeine indulgence. Symptoms can be counteredwith lots of exercise and sleep.“
http://www.koffeekorner.com/health4.htm
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BBC News | HEALTH | Caffeine 'reduces productivity'
„Toilet visits He said: "Our clinical research found that a high caffeine intake (more than 350mg during the working day) acts as a powerful diuretic and causes people to visit the toilet more frequently, which can lead to performance-zapping dehydration. "This, coupled with the powerful stimulating effects of caffeine, increases stress and causes failures in concentration." Sarah Schenker, a dietician for the British Nutrition Foundation, said there was nothing wrong with people drinking three or four cups of coffee a day - provided that they also drank water or other decaffeinated drinks to compensate. She said: "If you only drink caffeinated drinks then you will become mildly dehydrated. It has been shown that just 2% dehydration does affect concentration, and also makes you irritable." The study found 93% of workers surveyed drank at least one caffeinated beverage a day.“
http://news.bbc.co.uk/hi/english/health/newsid_1142000/ 1142492.stm
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