How is normal growth supported?

• A. By genetics alone
• B. By good nutrition, adequate sleep, and regular exercise
• C. By medical interventions
• D. By extended screen time

Answer: (B)

Normal growth relies on everyday healthy habits that provide the body with what it needs to develop. Good nutrition supplies the calories and nutrients—like protein for tissues, calcium and vitamin D for bones, iron for oxygen transport, and overall energy—that support growth and development. Adequate sleep is crucial because growth hormone is released mainly during deep sleep, so enough rest helps the body grow and repair. Regular physical activity strengthens bones and muscles, supports a healthy metabolism, and promotes overall development. Genetics sets the potential for growth, but without proper nutrition, sleep, and activity, that potential isn’t fully realized. Medical interventions are for addressing growth problems, not the routine process of growing well, and extended screen time isn’t a factor that promotes growth and can even disrupt sleep and activity.