Report Abuse. 1  Fastest time to run a mile is around 4 minutes. 2  The average time to walk a mile is 12 minutes, so half a mile would be 6 minutes. 3  well the average human walks at 3 mph so thats a mile every 20 mins and half a mile every 10 mins.  i walk a mile every morning in 15-20 minutes, so probably 10 minutes.
Coronary heart disease (CHD), also called coronary artery disease, occurs when plaque builds up in the coronary arteries. These arteries supply oxygen-rich blood to your heart. Plaque narrows the coronary arteries and reduces blood flow to your heart muscle.
Other causes of stenosis (narrowing) of the renal artery include: 1  fibromuscular dysplasia, an abnormal thickening of the muscles of the artery wall, most often seen in young women. 2  arteritis or inflammation of the artery. 3  aneurysm of the artery.  compression of the artery by an outside mass; for example, a tumor.