Some common ailments of respiratory system

Heart failure - a heart that can no longer pump enough blood to the rest of the body.

Hypertension - the increasing of blood pressure.

Stroke - the one parts of the brain gets damage because of inadequate supply of oxygen from brain. the blood clots in the artery.

Anemia - the red blood cells become too lowvthan the normal blood pressure.

Leukemia - cancer of blood. white blood cells grow faster than red blood cells.