How does the body's "fight-or-flight" response work?
The adrenal glands release the hormones epinephrine and cortisol to ensure that glucose is available under extreme circumstances when a person needs to fight or take flight (run quickly). Epinephrine stimulates glycogenolysis and gluconeogenesis, making glucose available. Cortisol allows glucose to get to the brain by blocking uptake by other tissues.
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A cup of milk contains approximately ____ milligrams of calcium
a. 100 b. 300 c. 500 d. 750 e. 1,000
Studies on high-carbohydrate diets and physical endurance in runners show dietary carbs increased maximum endurance, even though fats have more than twice the energy of carbs. How could this be true?
1.Dietary fat isn’t used directly for energy. 2.Aerobic activity relies on glucose for energy. 3.Energy from fat metabolism is released by a slower path than carbs. 4.Dietary fat isn’t used directly for energy & aerobic activity relies on glucose for energy. 5.Aerobic activity relies on glucose for energy & energy from fat metabolism is released by a slower path than carbohydrate.
When is it appropriate to introduce complementary foods, and how should these foods be introduced into the diet?
All of the following factors increase basal metabolic rate EXCEPT:
a.) elevated levels of thyroid hormone. b.) fever. c.) low-calorie diets. d.) pregnancy.