effect of a partly blocked coronary artery on the human body
Over time, this may weaken the heart muscle, meaning the heart cannot pump out enough of the blood it gets from the lungs. This negatively impacts the respiratory system, and leads to breathing problems.
Weakened heart muscle can also lead to heart failure, which means that blood cannot be properly transported around the body. This means that body cells and tissues do not receive enough oxygen and nutrients, such as glucose.
Finally, if the heart becomes starved of oxygen, this could result in a heart attack, which can be fatal.