Question

refers to any condition affecting the structures or function of the cardiovascular system, and affects more than 70 million americans.
a. osteoporosis
b. heart disease
c. diabetes
d. cancer

Explanation:

• Osteoporosis is a bone - related condition, not related to the cardiovascular system.
• Heart disease directly affects the structures and functions of the cardiovascular system (heart and blood vessels).
• Diabetes is mainly related to blood sugar regulation (pancreas and metabolism in general, not primarily the cardiovascular system in its definition).
• Cancer is a general term for abnormal cell growth in various tissues and organs, not specifically defined by its relation to the cardiovascular system.

Answer:

B. Heart disease