Define omission. omission synonyms, omission pronunciation, omission translation, English dictionary definition of omission. n. 1. The act or an instance of omitting. 2. The state of having been omitted. 3. Something omitted or neglected. or n 1. something that has been omitted or...
Causes of heart disease. Heart disease occurs when plaque develops in the arteries and blood vessels that lead to the heart. This blocks important nutrients and oxygen from reaching your heart. Plaque is a waxy substance made up of cholesterol, fatty molecules, and minerals.
By Mayo Clinic Staff. Risk factors for developing heart disease include: 1  Age. Aging increases your risk of damaged and narrowed arteries and weakened or thickened heart muscle.  Sex. Men are generally at greater risk of heart disease. However, women's risk increases after menopause.