B1 Fitness and health

B1 Fitness and health

1. Blood Pressure

   • It is measured in millimetres of mercury.
   • Systolic pressure - maximum pressure the heart produces.
   • Diastolic pressure - blood presure between heart beats
   • Increased by stress, alcohol, smoking, being overweight
   • Decreased by regular exercise, balanced diet
   • Hight blood pressure can cause blood vessels to burst.
   • Low blood pressure can lead to dizziness/fainting

2. Fitness and health

   • Fitness - ability to do physical activity
   • Health - free from diseases
   • Level of fitness measured by cardiovascular efficiency
   • Fitness also measured by; strength, flexibility, stamina, agility, speed
   • Ways of meausring fitness should be evaluated to check effectiveness in particular situations

3. Smoking

   • Smoking can increase blood pressure
   • Carbon Monoxide is in cigarette smoke
   • Nicotine in cigarette smoke directly increases heart rate
   • Carbon monoxide decreases the oxygen-carring capacity of blood

4. Diet and heart disease

   • Heart disease caused by bad blood flow to the heart
   • Risk of heart disease increase by having a lot of fat which builds up in arteries
   • The narrowing of arteries caused bt plaqus in the coronart arteries can reduce blood flow to the heart