Which of the following regarding alcohol's effects on the body is true?
A. Alcohol decreases the level of estrogen in women.
B. Alcohol can help improve sleep.
C. Alcohol is a depressant that slows the transmission of nerve impulses.
D. Alcohol is a stimulant that speeds the transmission of nerve impulses.
ANS: C
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Which amino acid is affected in the metabolic disorder 3-hydroxyisobutyric aciduria?
A. valine B. tryptophan C. leucine D. isoleucine E. arginine
The force exerted by the blood on the walls of blood vessels during the contraction of the ventricles is termed _______________.
Fill in the blank(s) with the appropriate word(s).
Answer the following questions true (T) or false (F)
1. Excesses of water-soluble vitamins are excreted from the body in urine and therefore they rarely accumulate to toxic levels. 2. Carotenoids need to be converted to their active form before they can be directly used in the body. 3. Research has shown that the right nutritional supplements need to be chosen to reverse aging, cardiovascular disease, cancer, and cognitive decline.
How might Vitamin D benefit athletes or active people? What are good food sources of Vitamin D for athletes?