Efficiency of the heart decrease due to decrease blood supply and there by oxygen and nutrient supply to the heart muscles . Due to this , heart has to perform more work that leads to stress on it .this may cause heart attack .If someone has heart attack , immediate consultation of doctor and treatment is necessary.
29th September is celebrated as world heart day
Reasons of heart attack:-
- Smoking
- Alcoholism
- Diabetes
- Hypertension
- Obesity
- Lack of physical exercise
- Heredity
- Mental stress
- Anger
- Anxiety
Treatments of heart disease:-
- Angioplasty
- By-pass surgery
- Open heart surgery
- Heart transplant
- Installation of stents
- Installation of pace maker
First aid for heart disease:- . first, call 108 for ambulance. Check the consciousness of patient by shaking the shoulders . Keep the patient by shaking the shoulders. Keep the patient lying on the back in horizontal position on hard surface and perform compression only life support (C.O.L.S.)In this, press the centre of thorax for at least 30 times at the rate of 100 to 120 strokes per minute.
*in case of a healthy person, there are 72 beats of heart per minute. Rate of heart beat increase due to physical exercise and emotions. Similarly, it has been observed that it decrease during rest and sleep . Number of beats is more in case of infants.*. * Two types of sounds are heard during heart beat. One is described as ‘lubb’ and other as ‘dub’. Heart pumps about 75ml of blood during each beat.*
class 11 