阅读理解

阅读下列短文，从每题所给的四个选项(A、B、C、D)中，选出最佳选项。

　　Would you like to know if your body is older or younger than it should be? Dr David Wikenheiser has been studying ageing in Vancouver, Canada, for the past 10 years and has found the average person is 15 or more years older biologically than their actual age.

　　He says: “We all know people who are 30 but look over 40, and others who are 70 yet look 50. The difference comes down to lifestyle. Some people's bodies get ‘rusty(生锈)’ faster than others, and this makes them age more quickly.”

　　After conducting more than 3,000 tests, Dr Wikenheiser believes that, on average, you can lower our biological age by 10 years in three months with the right lifestyle changes.

　　“You can't change your genetics (遗传) but you can make other changes, such as eating the right food, drinking enough water to flush out toxins (毒素), exercising and managing stress.” he says.

　　But exercising too much is just as bad as not doing enough. Working out for more than two hours at a time every day puts too great a strain on your heart.

　　“Multivitamin (多种维生素) and antioxidant (抗氧化剂) supplements are important even if you're eating the right amount of fruit and vegetables. Today's soil tends to lack important minerals so these are no longer found in the food we eat, in large enough quantities. We should also change bleached (漂白的) white table salt for natural sea salt which is much better for us.”

　　It's also important to eat three meals a day. Missed meals put a strain on your brain as your blood sugar level drops. Many of us are also eating the wrong fats or avoiding fat altogether, so we miss out on important nutritional (营养的) oils.

1．The passage is mainly about ________.

[　　]

A．how to live a healthier life

B．how to lower your biological age

C．how to keep young

D．how to select a good diet

2．From the passage we can conclude that the most important factor (因素) in slowing your aging process is ________.

[　　]

3．The author suggests in the passage that ________.

[　　]

A．we should have natural sea salt instead of bleached white table salt

B．we should avoid fat of any kind

C．we should have no more Multivitamin and antioxidant supplements

D．we should exercise at least two hours every day