Which of the following factors is NOT associated with increased cardiac risk?

Daily aerobic exercise is considered a protective factor against increased cardiac risk, rather than a contributing factor. Regular aerobic exercise helps improve cardiovascular health by strengthening the heart muscle, improving circulation, lowering blood pressure, and managing weight. It can also positively influence cholesterol levels by increasing high-density lipoprotein (HDL) cholesterol, often referred to as "good" cholesterol, while lowering low-density lipoprotein (LDL) cholesterol, or "bad" cholesterol.

In contrast, the other factors—women over the age of 55, family history of heart disease, and high cholesterol levels—are associated with increased cardiac risk. Aging women may experience changes further increasing cardiovascular risks, including hormonal changes post-menopause. A family history of heart disease indicates a genetic predisposition that may elevate risk factors. High cholesterol levels can lead to plaque buildup in arteries, increasing the chance of heart disease or heart-related conditions.