Fatty substance when accumulate inside the artery walls causes severe cardiovascular diseases, known as the atherosclerosis.
Explanation:
The fatty substance deposition are known as the plaque which builds up inside the arteries attaching itself to the wall. This causes reduction in the efficiency of the artery function which carry blood across having oxygen.
As the plaque gets build, they narrow the arteries and hence the blood carried across decreases causing other factors to be influenced at large. The atherosclerosis is also known as the atherosclerosis cardiovascular disease.