What happens to the heart and lungs in male puberty?

• A. Size doubles
• B. Size increases by 25%
• C. Size remains unchanged
• D. Size decreases

Answer: (A)

During puberty, the body undergoes rapid growth, and the heart and lungs adapt by getting larger to support the bigger body and higher metabolic demands. The heart’s chambers enlarge and its pumping efficiency improves to handle more blood as blood volume increases, while the lungs grow to raise overall lung capacity for oxygen delivery during greater physical activity. The exact amount of growth varies from person to person, so there isn’t a single fixed percentage that applies to everyone. The main takeaway is that these organs enlarge during puberty to meet the increased demands of a maturing body, which is why the option reflecting an increase in size is the best way to describe what happens.