Multiple choice general knowledge culture

Smokers also tend to be less active than nonsmokers because smoking directly affects _______

  1. plasma

  2. heart rate

  3. strength

  4. lung power

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Smoking directly damages lung function by destroying alveoli and reducing lung capacity, which decreases physical stamina and increases shortness of breath during physical activity. This reduced aerobic capacity makes smokers less physically active overall compared to nonsmokers.