The Effect of Caffeine on Human Blood Pressure

Lab Report

#3. Monica Maria Berlanga Delgado

#9. Aranza Hernández Gallegos

#12. Andrés Rodríguez Del Muro

#16. Mariana Tejeda Hinojosa

7th Grade

Biology

Teacher Maria Elena Ortiz

March, 2010

The Problem Statement

How caffeine affects blood pressure and the heart rate?

Hypothesis

If caffeine is consumed in large amounts it will increase the blood pressure.

Purpose

The purpose of this experiment is to determine if caffeine affects the blood pressure of 7th grade students.

We became interested in this project because we want to know how and why having high blood pressure affects many body functions. We also want to know why having high blood pressure is a heart problem.

We want the people to realize that caffeine in large quantities can give you problems in the body, in terms of physical condition, and / or certain heart problems, respiratory, and high blood pressure.

Materials

1 Sphygmomano meter, an instrument that measures blood pressure, using an inflatable blood pressure cuff & gauge

3 Students (7th)

4 Cans of Diet Coke

2 Straws

1 Chart

Procedure

1. Make sure all the materials are available. Each student should have eaten some breakfast. None of them can have consumed any tea, pop, coffee, or other caffeinated substances.

2. Take each of the students’ blood pressure, record the order. 3. Right after the blood pressure is taken, have each, student, drink a full can, 355

ml. of Diet Coke within 5 minutes. 4. Wait 2–3 min from when each student finishes the Diet Coke, and then take their

blood pressure again, using the same order. 5. Immediately have each drink another 355ml. can of Diet Coke. 6. Again wait another 2–3 min. until testing the blood pressure, in the same order. 7. Record their blood pressure.8. Calculate each student’s blood pressure change. The change is the difference

between the blood pressure with no caffeine and with 1 can of Diet Coke, and the difference between no caffeine and two cans of Diet Coke.

Results

The hypothesis was correct we proved that caffeine (DIET COKE) increase blood pressure.

Analysis

The side effects can start as early as 15-45 min. after entering the body. It will always have an effect as long as it is in the blood. You can only get a minor affect with 2-7 cups. A bigger effect can happen when you drink 7 or more cups of caffeine.

Pregnant women can only have a birth defect if she drinks 56-87 cups all at once. So if she drinks 4-28 cups she will not have an effect.

There are ways to decrease effects; one way is to, dilute coffee or tea with milk.

Caffeine can increase your chances of getting heartburn, having heart problems, etc.

If caffeine is consumed 30-60 minutes before going to sleep, it can cause restlessness and trouble getting to sleep.

Introduction

Our project is the Effect of Caffeine on Blood Pressure. At the beginning of this project we knew only that caffeine affects a lot of things, but not exactly what. Through reading we found out what it affects and a lot more. In our project you'll see why ingest caffeine is not a great idea.

Conclusion

The hypothesis was correct we proved that caffeine (DIET COKE) increase blood pressure. Don’t drink to much coke because it will increase your heart rate.

The Effect of Caffeine on Human Blood PressureWritten Report

#3. Monica Maria Berlanga Delgado

#9. Aranza Hernández Gallegos

#12. Andrés Rodríguez Del Muro

#16. Mariana Tejeda Hinojosa

7th Grade

Biology

Teacher Maria Elena Ortiz

March, 2010

Index

Web of Ideas……………………………..pg. 2

Abstract……………………………………..pg. 3

Introduction……………………………….pg. 4

Body……………………………………………pg. 5

Conclusion………………………………….pg. 6

Bibliography……………………………….pg. 7

Task of Description……………………..pg. 8

Chart

Blood Pressure 1

Blood Pressure 2

Blood Pressure 3

MonicaSYS: 100DIA: 70

PULSE: 80

SYS: 94DIA: 67

PULSE: 83

SYS: 112DIA: 75

PULSE: 90

Blood Pressure 1

Blood Pressure 2

Blood Pressure 3

AndresSYS: 108DIA: 75

PULSE: 89

SYS: 112DIA: 73

PULSE: 83

SYS: 109DIA: 67

PULSE: 66

Blood Pressure 1

Blood Pressure 2

Blood Pressure 3

AranzaSYS: 100DIA: 70

PULSE: 80

SYS:107DIA: 71

PULSE: 85

SYS: 108DIA: 70

PULSE: 79

Abstract

Introduction

Our project is the Effect of Caffeine on Blood Pressure. At the beginning of this project we knew only that caffeine affects a lot of things, but not exactly what. Through reading we found out what it affects and a lot more. In our project you'll see why ingest caffeine is not a great idea.

Body

Conclusion

The hypothesis was correct we proved that caffeine (DIET COKE) increase blood pressure. Don’t drink to much coke because it will increase your heart rate.

Bibliography

Task of Description

Monica: Mini-triptic and proposal, triptic.

Mariana: Written report and search for information, triptic.

Andres: Lab report and part of the written report, triptic.

Aranza: Lab report and written report, triptic.

Web of Ideas

Effects of Caffeine

SleepingTrouble getting

to sleep

Sleep Disturbances

Increasing

DiseaseHeartburn

Heart Problems

Heart Beat

Irregular

2-7 Cups

Can cause nausea

Headache

Tense muscles