Heart Disease. Heart disease, or coronary artery disease, occurs when the blood vessels that supply oxygen to the heart narrow and stiffen. Smoking, an unhealthy diet, stress, and a sedentary lifestyle all increase the risk of heart disease. A heart attack or stroke can occur if the condition is untreated.he circulatory system consists of the heart, blood, and blood vessels, which transport nutrients and oxygen to all cells to keep the body in proper balance. The circulatory system is responsible for moving blood, nutrients, and gases to and from cells to keep the body in proper balance.
The use of first, second, and third person creates the perspective or point of view of a piece of writing. Writing in first person uses the personal pronouns I, we, me, and us, and the possessive forms my, mine, our, and ours; while second person uses you, and the possessives your and yours..
First person is fairly common in personal professional writing, such as someone's memoirs. Some creative works use this perspective to tell a story from the point of view of a character within it. Second person is quite rare in creative writing, though it can draw a reader into a story when used well.irst person is fairly common in personal professional writing, such as someone's memoirs. Some creative works use this perspective to tell a story from the point of view of a character within it. Second person is quite rare in creative writing, though it can draw a reader into a story when used well.