Explain how the onset of puberty is related to nutritional status in adolescents. Include the role of leptin and discuss the impact of malnutrition on the timing of puberty.
Answer
Adequate nutrition raises leptin, which stimulates GnRH release and normal puberty; malnutrition lowers leptin, delaying puberty.
Step-by-step solution
- Define leptin as hormone produced by adipose tissue.
- Explain that leptin signals energy sufficiency to the hypothalamus, enabling GnRH secretion.
- State that GnRH triggers LH and FSH release, starting puberty.
- Highlight that low leptin due to malnutrition suppresses GnRH, delaying puberty.
- Conclude that good nutrition ensures timely puberty.
Common mistake: Ignoring leptin’s role, attributing delay solely to genetics
Concept tested: Nutrition and puberty
Published · How this solution was prepared and checked
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