All three groups conducted a Reaction Time Task consisting of 44 trials. * Results The current results failed to support the hypothesis ‘caffeine consumption causes a significant decrease in reaction time’ (Regular coffee and decaffeinated coffee (U=11.00, N = 12; p=.262), regular coffee and base line (U=9.00, N = 12; p=.150). Conclusion The present investigation, failed to distinguish significant differences between participants caffeine consumption and reaction time. The data gathered may have been subjected to confounding variables influencing results and therefore failing to support the original hypothesis. Introduction: Caffeine is a widely consumed substance, being found in food as well as beverages (Brice and Smith, 2002).
Discuss the position of each of the two articles you selected. The topic I chose was Coffee, I chose two articles and in one the article discusses the positive effects on cognition and psychomotor behavior in aging, although in this article this has not been performed on humans they attempted a study on rats and it shows that the rats that have an intake of coffee have an improvement in memory performance, the study was shown that it was not the caffeine
It can also be extracted from the combination of uric acid. Along with coffee, tea is the most common natural source of caffeine. To successfully extract caffeine from tea leaves it’s best to use tannin. The term tannin denotes a class of compounds that have specific
The misconception is that caffeine directly leads to increase in stress levels because cortisol is involved. However, factors which cause individual differences in cortisol are the ones which will influence the likelihood of developing delusional and hallucinatory experiences. The article also does not note the important fact that daily usage of caffeine reduces this effect. The claim by the press that drinking cup after cup of coffee reduces risk of hallucination is therefore misguided and misappropriated. The press also claims that women and men who are healthy and drink more than seven cups of coffee everyday are more prone to hallucinations than those who are limited to one cup a day.
Along with extracts from the plant itself, other active ingredients on the label of the supplement used in this experiment include caffeine and green tea extract. Since Hoodia is a fairly new product, there are not many reliable studies published on the effects of Hoodia on human appetite. Since it is coupled with similar products as Bitter Orange, it is assumed the products’ effects on the appetite are very similar. Therefore, a hypothesis and prediction similar to that concerning the effects of Bitter Orange can be formed. The hypothesis reached before experimentation was that since Tetrahymena lack a nervous system, which is the main body system involved in producing the desired
When in pure form, caffeine is a white crystalline powder that taste very bitter. The most common way of acquiring pure caffeine is the process of decaffeinating coffee and tea. Caffeine is useful as a cardiac stimulant and also as a mild diuretic. Cardiac stimulants increase the heart rate, and diuretics increase urine production. Caffeine is also used to provide a “boost of energy” or a feeling of heightened alertness.
They are five artificial sweeteners available in the United States: saccharin, aspartame, sucralose, neotame, and acesulfame potassium. Along with these five artificial sweeteners, there are other herbal/natural sweeteners on the market like stevia, sorbitol, lactitol, and xylitol. Saccharin is a derivative of the basic substance, benzoic sulfinide. It has no food energy and is 300 times sweeter than sucrose, but has an unpleasant bitter aftertaste, especially at high concentrations. In many cases it is used to sweeten products such as drinks, candies, medicines, and toothpaste.
Assessment of Health Need Government guidelines state that men should drink no more than three to four units and women no more than two to three units of alcohol daily. Binge drinking is defined as drinking heavily in a short space of time/ drinking approximately double the recommended limit (Drinkaware, 2010). Alcohol has become an “underappreciated” health risk “factor” as well as an economic burden; further evidence that the dangers of alcohol are of a global concern. The World Health Organisation is advised to consider the tobacco frameworks as an insight into what their actions should be on alcohol control (Beaglehole & Bonita, 2009). One reason offered as an impediment to controls not being in place at present is the imbalance of power between health experts and the alcohol industry (Shiffman & Smith, 2007).
It is the ultimate anti-marijuana plant, yet gets confused and grouped in with marijuana. Today’s hemp is said to have around 0.03% THC and growers are advancing to eliminate THC if possible, as this is supposed to produce a better product. The two varieties of the plant are not harvested in the same season, and if they were to cross-pollinate the THC levels in the marijuana plant would be reduced. Marijuana’s THC potency is rumored to be continuously increasing; now certain varieties may have close to 15% THC. Hemp is grown differently from marijuana; it is grown to be very tall, and the leaves block out sun so that weeds are prevented.
But the U.S. is far from the lead when it comes to national caffeine consumption. According to a 2010 report by commodities analysts for Business week, Scandinavian nations such as Finland consume more caffeine per capita -- mostly in coffee -- than any other country. The report noted other surprising trends, like a move in Brazil to offer coffee