Health

about the need for food for activity and growth, and about the importance of an adequate and varied diet for health

• Heart rate is measured in bpm (beats per minute)
• The heart rate is affected by the flow of oxygen in the body and how fast it flows
• The more oxygen that needs to get to the organs the faster the blood carrying the oxygen needs to flow, this is increased by the heart beating faster

• Oxygen level is the ammount of oxygen present in the blood.
• It is measured in a percentage
• Anything above 95% is normal

Dangers of Tobacco Smoking

• Nicotine causes an addiction, raises blood pressure, damages blood vessels and increases risk of cardio vascular disease
• Smoking reduces fertility
• Carbon monoxide cuts down oxygen supply
• Fine hairs (cilia) are destroyed
• Lung cancer is caused by tar
• Surface area of the air sacs are reduced