Answer to Question 1
A
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Iron doses for replacement therapy are determined by age. If a liquid solution is being used, the child should drink it through a straw to avoid staining the teeth. Periodic blood counts should be performed; it may take 4 to 6 months of oral therapy to reverse an iron deficiency. Remember that iron can be toxic to children, so that iron supplements should be kept out of their reach and administration monitored.
Answer to Question 2
A
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Light has been found to have an influence on the functioning of the hypothalamus. Increased light levels boost the release of follicle-stimulating hormone (FSH) and luteinizing hormone (LH) and increase the release of estrogen and progesterone. Heat, cold, and humidity have not been shown to play a role in human reproduction unless temperature extremes occur and increase stress significantly.