A study found that regular exercise reduced the risk of developing a certain chronic disease. What is the most likely mechanism behind this observation?
Q1. A study found that regular exercise reduced the risk of developing a certain chronic disease. What is the most likely mechanism behind this observation?
Answer: Improvement in cardiovascular health
Explanation: Exercise improves cardiovascular health, reducing the risk of chronic diseases like heart disease. Options B and C are also benefits of exercise but not the only mechanisms.