Atherosclerosis (or arteriosclerotic vascular disease) is a condition where the arteries become narrowed and hardened due to an excessive build up of plaque around the artery wall.
A symptom is something the patient feels and describes, such as pain, while a sign can be detected by other people, such as a rash.The condition is caused by macrophage white blood cells and fat that accumulate in arteries - the white blood cells are originally sent by the body's immune system to clean up LDL cholesterol pockets.

Those who are at risk of developing atherosclerosis will likely be told by their doctor to change their lifestyle and maintain a healthy weight. In some cases treatment may include medication or surgery.

The best way to prevent atherosclerosis is to eliminate any risk factors you might have. The best way to do this is by living a healthy lifestyle.
Diet- Try to avoid saturated fats, they increase your levels of bad cholesterol.The following foods are high in unsaturated fats and can help keep bad cholesterol levels. There are olive oil,avocados,

walnuts,oily fish,nuts,seeds.