题目内容：

5 Lifestyle Choices You Will Feel in Your Bones

YOU SPEND TOO LITTLE TIME ON THE MOVE

"Bone is a living tissue," says Jonathan Lee, a physician at Montefiore Health System in New York City. "The more you use it, the more it will adapt and strengthen. Likewise, if it is not subjected to loading, it will waste away. " The solution? Weight-bearing exercise-even just walking. Strength training Counts too

YOU EAT SALTY SNACKS

A study from Japan showed that women over fifty who had high sodium (钠) intakes were more than four times as likely to have a fracture (break of.bones) as those with low sodium intakes. That's because as the kidneys(肾) excrete(排出) the sodium, calcium is reducing from the bloodstream too.

YOU SHUT SUNLIGHT AWAY

" Vitamin D is required for the body to successfully absorb and use calcium," Dr. Lee says. "Most Americans do not get enough sun exposure to generate enough natural vitamin D, and thus supplementation is essential. " According to the National Osteoporosis Foundation, adults under 50 need 400 to 800 IU of vitamin D daily and adults 50 and older need 800 to 1,000 IU. Talk to your doctor about your specific needs based on where you live, what time of year it is, and which vitamin D-rich foods you eat.

YOU'RE CASUAL WITH WINE

Low levels of alcohol consumption may be good for your bones, according to a study from Oregon State University, but more than a couple of drinks a day has the opposite effect. "Too much alcohol can make it harder to absorb calcium," says Dr. Lee. Furthermore, "In women in particular, higher alcohol consumption can decrease estrogen (雌激素） levels, and this can also lead to osteoporosis(骨质疏松) , " Dr. Lee says.

YOU LIVE IN AN AREA WITH DIRTY AIR

In a study recently published in the Lancet Planetary Health , researchers dealt with hospital data for 9.2 million Medicare participants in the Northeast and mid-Atlantic between 2003 and 2010. They found that even a small increase in levels of pollutants in the air--may lead to an increase in bone fractures and osteoporosis in older adults. If you live in a smoggy area,use an air purifier filter at home, avoid exercising outdoors when the air quality is bad,and get screened for osteoporosis.

1.According to the article, to have healthy bones, a lady of 65 should          .

A. form a habit of drinking a bottle of wine every day

B. protect herself from being exposed to sunlight

C. exercise indoors or do little strength training

D. lessen sodium intakes in her diet

2.The article states that the health of the bones is affected by the following except                     .

A. air quality B. body clock

C. personal diet D. physical training

3.This article is possibly chosen from              .

A. a gym advertisement

B. a medical textbook

C. a lifestyle magazine

D. a medicine instruction