gcse physical education the effect of lifestyle on the cardiovascular system
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GCSE Physical Education The Effect of Lifestyle on the Cardiovascular System. Learning Objectives. By the end of this lesson pupils should: The need for rest and recovery time The impact of diet on the cardiovascular system, in particular how it can effect - PowerPoint PPT PresentationTRANSCRIPT
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GCSE Physical GCSE Physical EducationEducation
The Effect of Lifestyle on the The Effect of Lifestyle on the Cardiovascular System Cardiovascular System
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Learning ObjectivesLearning Objectives
By the end of this lesson pupils should:
The need for rest and recovery time
The impact of diet on the cardiovascular system, in particular how it can effect blood pressure and cholesterol
The effects of recreational drugs
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RestRest
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RestRest Rest - the period of time allotted to recovery
Rest is essential to recovery and to allow the body to adapt
Specifically, rest allows the heart to grow in size and thickness and for the number of capillaries to increase
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Risk of Coronary Heart Risk of Coronary Heart DiseaseDisease
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Risk of Coronary Heart Risk of Coronary Heart DiseaseDisease
Factors that may have a negative effect on the cardiovascular system and increase the risk of coronary heart disease include:
High cholesterol
Recreational drugs
Sedentary lifestyle and lack of exercise
Stress
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High CholesterolHigh Cholesterol
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High CholesterolHigh Cholesterol
Cholesterol is a fatty substance carried in the blood by lipoproteins
Lipoprotein come in two forms:
High density lipoprotein (HDL)
Low density lipoprotein (LDL)
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High Density Lipoprotein High Density Lipoprotein (HDL)(HDL)
Contains more protein than fat and is referred to as ‘good cholesterol’
Carries cholesterol away from the arteries to the liver, which removes it from the body
Foods rich in HDL include fruit, vegetables, whole grains, and legumes
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Low Density Lipoprotein Low Density Lipoprotein (LDL)(LDL)
Consists mainly of fat and is known as ‘bad cholesterol’
Is the major cause of cholesterol in the blood, and can lead to a build-up of plaque which can restrict blood flow in the arteries
Blockages in the blood vessels mean that the heart has to work harder to pump blood around the body, resulting in an increase in blood pressure
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High CholesterolHigh Cholesterol
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High CholesterolHigh Cholesterol
High cholesterol can be caused by a diet high in LDL, such as saturated fat (bad fat).
Cholesterol only becomes a problem when the level in the blood is too high
More cholesterol than the body needs can cause a build up of fatty deposits (plaque) in the arteries and lead to heart problems
This can increase the risk of coronary heart disease
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Recreational DrugsRecreational Drugs
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Recreational DrugsRecreational Drugs Nicotine raises blood pressure because they release adrenaline. Adrenaline constricts the arteries and causes the heart to beat faster
Tobacco smoke is a major risk of heart disease. Smoking lowers HDL (‘good cholesterol’) and increases chance of blood clotting
Some people have to take prescription drugs to control blood pressure
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Sedentary Lifestyle & Lack of Sedentary Lifestyle & Lack of ExerciseExercise
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Sedentary Lifestyle & Lack of Sedentary Lifestyle & Lack of ExerciseExercise
Inactivity means that the cardiovascular system does not receive the benefits of exercise
Sedentary living is also believed to be one of the main reasons for increasing rates of obesity
Sedentary living involves sitting and a lack of exercise
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StressStress
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StressStress The stress that may increase the risk of cardiovascular disease is different to the stress felt before a competition or while taking an exam
Negative stress builds up over time and can affect the cardiovascular system by leading to an increase in blood pressure and elevated heart rate
It can also lead to depression and mood swings
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Learning Objectives Learning Objectives (Revisited)(Revisited)
By the end of this lesson pupils should:
The need for rest and recovery time
The impact of diet on the cardiovascular system, in particular how it can effect blood pressure and cholesterol
The effects of recreational drugs
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Thank youThank you
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