B1a-fitness and health

Question 1

How does cholesterol increase the risk of heart disease?

Answer 1

1) Plaque forms in artery walls

2) causes Blood clot (thrombosis)

Question 2

How does too much salt in diet increase heart disease?

Answer 2

1) body retains more water
2) increases blood pressure
3) heart has to pump greater volume of blood around body

Question 3

How does smoking increase risk of heart disease?

Answer 3

Cigarettes contain:
-Nicotine
Makes heart beat faster
Narrows arteries
Increases blood pressure

Cigarettes produce:
-Carbon monoxide
Binds with haemoglobin in red blood cells
Red blood cells carry less oxygen

Question 4

What is Fitness?

Answer 4

The ability to do physical activity

Question 5

What is Healthy?

Answer 5

Being free from disease

Question 6

How can you measure fitness?

Answer 6

• strength
• stamina
• flexibility
• agility
• speed
• cardiovascular efficiency

Question 7

What is systolic pressure?

Answer 7

The measurement taken when the heart contracts

Question 8

What is diastolic pressure?

Answer 8

The measurement taken when the heart relaxes

Question 9

What is a normal blood pressure?

Answer 9

120/80 mmhg

Question 10

What happens when blood pressure is too high?

Answer 10

• blood vessels burst
• stroke
• kidney failure

Question 11

What happens when blood pressure is too low?

Answer 11

• dizziness
• fainting
• not enough oxygen reaches the brain

Question 12

What are some lifestyle choices that cause Heart disease?

Answer 12

• too much saturated fat (cholesterol)
• too much salt in diet
• smoking
• having high blood pressure which is caused by alcohol, stress and being overweight

Question 13

Why is blood in arteries under pressure?

Answer 13

-contraction of heart muscles so blood reaches all parts of the body