Definition of inference for English Language Learners. : 1  the act or process of reaching a conclusion about something from known facts or evidence. : 2  a conclusion or opinion that is formed because of known facts or evidence.
Causes of Clogged Arteries. There are many substances and properties that can circulate with the blood, including cholesterol, calcium, fat, fibrin and cellular waste. When these substances accumulate on the inner walls of the arteries, they turn into plaque buildup.
Your heart is a muscle that pumps blood throughout your body, but it also needs its own blood supply. The blood vessels that provide oxygen-rich blood to your heart are called the coronary arteries. These arteries can become narrowed through build-up of plaque, which is made up of cholesterol and other substances. Narrowed arteries can cause symptoms, such as chest pain (angina), shortness of breath, and fatigue. If a plaque ruptures, a blood clot can form at the site of the rupture and block blood flow through the artery. This is a heart attack.