Here's how yo-yo dieting affects your body and your mind

    Yo-yo dieting, also known as weight cycling, occurs when a person experiences periods of weight loss followed by weight gain followed by weight loss and so on and so on. The effects of this weight cycling are significant, even when the weight lost and gained is as little as 10 pounds.____

    It can make you gain weight

    While dieting may help you lose a few pounds at first, it only works temporarily. Your body responds to the lack of calories by turning to lean muscle mass for energy. Once you have returned to your normal eating habits, the weight comes back on –____

    ____

    Yo-yo dieting may increase the risk for heart disease and sudden death in post-menopausal（绝经后期）women. Studies found that when normal-weight women experienced periods of weight cycling, they were 3.5 times more likely to have sudden death than women whose weight remained stable. In the same study, yo-yo dieting increased a woman's risk of death by 66 percent.

It can be damaging to your skin

    Dermatologist (a doctor who studies and treats skin diseases) Robin Evans weighed in on the effect that yo-yo dieting has on the skin. “The up and down weight losses and gains can have harmful effects on the skin especially on the face with stretching and contracting the skin,” said Evans____.

It plays games with your mind

    Yo-yo dieting is hard on the body,____ Repeatedly gaining and losing weight can leave dieters feeling more depressed about their weight and losing self-belief as a result.

    If you're a yo-yo-dieter, talk to your health care provider about lifestyle changes that can help you maintain a stable and healthy weight for years to come.

A. It only works temporarily

B. It can damage your heart

C. but in the form of fat, not muscle

D. but it's even harder on the mind

E. but with a smaller size, you will make yourself less friendly

F. The result ends up more wrinkles and an overall effect of aging the skin

G. We turned to the experts to find out how yo-yo dieting can affect your body and your mind

你认为最合适在潜水艇里制氧气的方法是（填序号）____．与其他两种方法相比，这种方法的两条优点是____、____．

    One of the most striking findings of a newly research in the UK is that of the people interviewed, one in two believes that it is becoming more difficult to meet someone to start a family with.

    Why are many finding it increasingly difficult to start close relationships? Does modem life really make it harder to fall in love? Or are we making it harder for ourselves? It is certainly the case today that contemporary couples benefit in different ways from relationships. Women no longer rely upon partners for money or status. A man doesn't expect his wife to be in (唯一的) charge of running his household and raising his children.

    But perhaps the knowledge that we can live perfectly well without a partnership means that it takes much more to persuade people to abandon their independence.

    In theory, finding a partner should be much simpler these days. Only a few generations ago, your choice of soul mate was limited by geography, social convention and family tradition. Although it was never clear，many marriages were essentially arranged. Now those barriers have been broken down. You can approach a builder or a brain surgeon in any bar in any city on any given evening. When the world is your oyster ( 牡蛎), you surely have a better chance of finding a pearl.

    But it seems that the old conventions have been replaced by the limitations of choice. The expectations of partners are raised to an unmanageable degree: good looks, impressive salary, kind to grandmother, and right socks. There is no room for error in the first impression.

    We think that a relationship can be perfect. If it isn't, it should be ended. We work to protect ourselves against future heartache and don't put in the hard emotional labor needed to build a strong relationship. Twelve-hour work at the office makes relaxed after-hours dating difficult. The cost of housing and child-raising creates pressure to have a stable income and Career before a life partnership.

某小组同学用卫生球做实验，研究萘的熔化过程，作出如图所示

的图象，图中BC段表示 ____过程，在开始计时第6min，萘处于 ____状态，由图象还可以知道萘的熔点是　 ____　℃．

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