Define the term critical period. How do adverse influences during critical periods affect later health?
What will be an ideal response?
Critical periods are finite periods during development in which certain events may occur that will have irreversible effects on later developmental stages. In the case of the developing fetus, a critical period is a period of rapid cell division. Early malnutrition during these times affects the heart and lungs in later life.
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After 30 minutes of sun exposure, which of the following people would have synthesized more vitamin D?
a. a light-skinned person b. a dark-skinned person c. neither, because skin pigmentation is not related to vitamin D synthesis d. they would both synthesize the same amount
For optimal weight loss and health benefits, the American College of Sports Medicine (ACSM) recommends engaging in physical activity for at least ________.
A. 20 minutes daily B. 90 minutes daily C. 300 minutes weekly D. 150 minutes weekly
Mary has passed a national exam after four years of nutrition training at a university. Her name tag reads
A) nutrition assistant. B) registered dietitian nutritionist. C) dietitian. D) nutritionist.
Which symptom would be unlikely in a case of hypoglycemia?
a. weakness b. shaky muscles c. elevated heart rate d. mental acuity e. irritability