Answer: diet, smoking, inactivity, high blood pressure, high cholesterol, and excessive alcohol consumption
Explanation:
I believe the answers are B,C, and D. All of them do not involve speaking however keeping a journal isn't communicating with another person. <span />
<span>Your heart pumps the blood through your veins and your arteries.</span>
Double blind is the type of research study is set up so that neither subjects nor investigators know which is the active group and which is receiving a placebo.