Exercise can _____.

• A. Increase bone strength
• B. Reduce stress
• C. Boost mood
• D. All of the answers are correct

Answer: (D)

Regular physical activity has multiple positive effects on both the body and mind. Weight-bearing and resistance exercise stimulate bone remodeling, increasing bone mineral density and strengthening bones. Exercise also helps regulate stress by lowering cortisol levels and releasing feel-good endorphins, which can lead to a calmer state after activity. In addition, physical activity enhances mood through brain chemical changes, including higher levels of neurotransmitters like serotonin and dopamine, and it can improve sleep and self-esteem. Since each of these benefits is real, choosing all of the above best captures what exercise can do.