A living will is one form of advance directive, leaving instructions for treatment. Another form is a specific type of power of attorney or health care proxy, in which the person authorizes someone (an agent) to make decisions on their behalf when they are incapacitated.
Antioxidant vitamins A, C and E may improve blood flow by preventing oxidation of cholesterol, one of the main causative factors in arterial plaque formation, according to a study published in the January 2012 issue of the journal Advances in Clinical and Experimental Medicine..
Vitamin K plays a key role in helping the blood clot, preventing excessive bleeding. Unlike many other vitamins, vitamin K is not typically used as a dietary supplement. Vitamin K is actually a group of compounds. The most important of these compounds appears to be vitamin K1 and vitamin K2.