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.
This can result in severe narrowing of the arteries leading to the heart or a sudden blockage of blood flow through these coronary arteries. Cardiac ischemia is caused when the supply of blood reaching heart tissue is not enough to meet the heart's needs. When not enough blood gets to the heart, it can cause pain in the chest (angina), shortness of breath, sweating, and other symptoms.