1 This can happen when the arteries to the heart become thicker and harder from a buildup of plaque. 2  High blood pressure causes scarred arteries that fill up with plaque and become more prone to blood clots.
To commandeer is to take possession or control of something, or to take control of something for a military or law-enforcement purpose, or to make someone help you.
Leaders are people who do the right thing; managers are people who do things right. Leadership is the art of getting someone else to do something you want done because he wants to do it. The word leadership can bring to mind a variety of images. A political leader, pursuing a passionate, personal cause.