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My investigation is to find out whether consuming caffeine affects the body and, if so, in what way. In order to find out I am going to set up an experiment.
Member rating: No Rating | Words: | Submitted: Tue Oct 07 2003
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SC1 Aim My investigation is to find out whether consuming caffeine affects the body and, if so, in what way. In order to find out I am going to set up an experiment. Background, research and Theory Caffeine is the ingredient that gives coffee, tea, chocolate and Coca cola (Coke) its kick. It is called a stimulant because it causes a number of physiological effects. Stimulants are drugs which speed up the action of the brain. Caffeine affects the central nervous system and tends to stimulate the release of two key hormones - *epinephrine and norepinephrine. *(Norepinephrine and epinephrine are sometimes called noradrenalin and adrenaline) To understand this I will explain how nerve impulses are transmitted from cell to cell. Passage of nervous impulses from cell to cell Interchange of information involves impulses crossing the small spaces between the nerve endings. These spaces are called synapses. The transfer of impulses across these synapses involves the...
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