[单项选择]Why do people shrinks Did you ever see the movie Honey, I shrunk the kids It’’s about a wacky dad (who’’s also a scientist) who accidentally shrinks his kids with his homemade miniaturizing invention. Oops! (46)______ For older people, shrinking isn’t that dramatic or sudden at all. It takes place over years and may add up to only one inch or so off of their adult height ( maybe a little more, maybe less ) , and this kind of shrinking cant be magically reversed, although there are things that can be done to stop it or slow it down. (47)______ There are a few reasons. As people get older, they generally lose some muscle and fat from their bodies as part of the natural aging process. Gravity (the force that keeps your feet on the ground) take hold, and the bones in the spine, called vertebrae, may break down or degenerate, and start t collapse into one another. (48)______ But perhaps the most common reason why some older people shrink is because of osteoporosis. Osteo