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HypothesisI think that the amount of caffeine in the blood will determine the heart rate of the daphnia. It will be directly proportional to each other
Member rating: No Rating | Words: | Submitted: Wed Jan 04 2006
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Does Caffeine Affect Heart Rate? Caffeine is made by plants as a way of getting rid of insects. Cocoa is produced in South America, coffee in Africa and tea is produced in Asia have all been used for a very long time to give us a little rush in order to keep us going. Now caffeine is also used as a flavour enhancer in cola and other soft drinks also it has medicinal uses in aspirin preparations and is found in weight-loss drugs and as a stimulant in normal people in everyday to keep them alert in lessons. A favourable drink is Red Bull. Caffeine is a drug that stimulates the body and causes increased amounts of stimulatory neurotransmitters to be released. At high levels of caffeine consumption it can and has been linked to restlessness, insomnia and anxiety, this therefore causes raised stress and blood pressure. This can then lead to...
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