How Much Do You Know About Bones?
Are you a bone whiz or a bonehead? Take a bone quiz to find out.
7. The most common site of bone break
seen in hospital emergency rooms is in the:
Answer: a. According to data provided by the American Academy of
Orthopaedic Surgeons, in 2004 the leading bone break seen in hospital emergency
rooms was a fracture of the wrist, hand, or fingers, with some 1,093,000 cases
in the U.S. Next in line were ankle, foot, and toe fractures (783,000),
followed by lower arm fractures (763,000) and upper arm fractures
8. Nutrients necessary for healthy
Calcium and vitamin
Zinc and magnesium
All of the above
Answer: d. Though calcium is a key nutrient for strong bones, vitamin
D is also necessary in order for bones to absorb calcium -- one reason why milk
is often fortified with this nutrient. That said, zinc, magnesium, and protein
are also found in milk and are important for strong bone health.
Among the best sources of calcium are low-fat or nonfat milk or cheese,
yogurt, broccoli, almonds, and calcium-fortified foods such as orange juice,
cereals, soy beverages, and tofu products.
Which of the following lifestyle
habits affects bone health:
c. Excessive alcohol
All of the above
Answer: d. While smoking and alcohol affect bones in a negative way,
exercise can have a positive effect on bone health. Studies have shown a direct
link between smoking and a decrease in bone density that in turn increases the
risk of a bone-thinning disorder known as osteoporosis.
Excessive drinking can interfere with the production of vitamin D, which in
turn interferes with calcium absorption. Alcoholism has also been linked to an
increase in levels of cortisol, a hormone that can decrease bone formation and
increase bone breakdown.
Meanwhile, exercise -- particularly weight-bearing workouts that force you
to push against gravity, such as walking, weight lifting, and climbing stairs
-- increases bone health to help slow loss of bone density as we age.