Caffeine affecting heart rate- lab

Honors Biology Final Lab Report June 9 2009 trouble: How does caffein bushel your heart ordinate? Hypothesis: caffeine, as a arousal would act to raise the resting heart rate. some two bpm rise per mg per oz. Of caffeine. Procedure: piece a interrogatory group of 15 people who find in non make any strenuous activity in previous hour, excessively no caffeine for 8 hours (to experience resting heart rate). address the resting heart rate of the fifteen people, and record. scan heart rate after twenty minutes mystify passed, and record. Collect this selective information on ternion contrasting test groups using the three variables of caffeinated beverage. Previous Research: The set up on caffeine have not been a near researched topic in the scientific world. The topic and affects have been overviewed just the physical cost this dose takes has not been a fretting to the public eye, because scientists have not produced a sufficient measure of public knowledge. Caffeine has a chemical name of 3, 7-dihydro-1, 3, 7-trimethyl-1H-purine-2, 6-dione (or 1, 3, 7-trimethylxanthyine for pitiful). (msnhealth.com 2004) Caffeine works as a stimulant to the central sick system, speeding up the neuron messages to and from the brain. Caffeine is the worlds most widely employ drug.

It can be undercoat naturally in leaves, seeds or fruits. Although it is FDA approved caffeine has disconfirming affects to the body. Research has essayn links mingled with heavy use of caffeine and osteoporosis, tall blood squeeze and heart disease, heartburn, ulcers, se vere insomnia and infertility. Some short ! term affects show anxiety, irritability, increased breathing and heart rates, restlessness, excitability, dizziness, headaches, insufficiency of concentration, gastro-intestinal pains, dehydration, and frequent micturition and bowel movements. (msnhealth.com 2004) Death can slip by from a caffeine overdose. It would take approximately 8,900 mg of caffeine to cause expiration in an average female measure 130 pounds. In an average male...If you want to get a full essay, govern it on our website: OrderCustomPaper.com

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