More Americans say they are on a special diet compared with Americans about 10 years ago. The increased dieting comes at a time when obesity levels continue to rise. 17 percent of Americans said they were on a diet in 2017 — up from 14 percent about 10 years earlier. Over the same period, obesity levels increased in the U.S. to 42 percent — up from 34 percent.

About half of American adults have diet-related health problems, such as diabetes and heart disease. Overall, more women reported being on a diet than men. The heavier and more educated people were, the more likely they were to report being on a special diet.

Between 2007 and 2017, diets described as “weight loss or low calorie” grew in popularity. Low-carbohydrate diets became more popular, while low-fat and low-cholesterol diets became less popular.

The findings were part of an ongoing national survey. People who took part in the survey were asked the following question: “Are you currently on any kind of diet, either to lose weight or for some other health-related reasons?”

Becky Ramsing is a dietician and program officer at Johns Hopkins Center for a Livable Future. Ramsing said that people made very different kinds of choices in the hopes of losing weight. In some cases, she said people might not understand why the choices they made could not help them lose weight. “They won't eat bread, but then they' eat a lot of other things that are higher in calories,” she said.

Ramsing added that many American diet trends banned some foods. But to make lasting changes, she said people should consider their eating overall. “That will help them deal with another problem of diets,” she noted. “Diets are hard to continue doing over time.”

Water is closely related to our lives, and it is an inseparable part of us. Studies show that drinking enough water fights off health problems.【小题1】

Help you lose weight. Some research has suggested that drinking plenty of water can help you burn calories. 【小题2】 It fills you up so you don’t eat so much; it keeps down your thirst so that you don’t turn to calorie-rich sodas or juices.

Protect against cancer and heart disease. Water helps transport nutrients (营养), hormones and proteins around the body, and “messages” to the nervous system. Water also cleans our liver, kidney and bladder. In fact, a US study found that men who drank six 250 ml glasses of water a day halved their risk of bladder cancer, while another study suggested that women who drink more water cut their risk of colon cancer by up to 45 percent.【小题3】

Strengthen your immune system with a shower. A shower will surely clean our body from head to toe. 【小题4】 A Dutch study where participants took hot-to-cold showers found that they had fewer sick days from work.

【小题5】 Swimming is a great no-sweat exercise. Not only does it give you a full-body workout and increase your energy, but it also doesn’t leave you sweaty, because the water around you keeps your body cool. Like swimming, boating is also low impact sport that is great for your arms, body and legs, and has the added benefit of having a meditative (冥想的) quality that can release stress.

More than 135,000 UK drinkers will die from cancer caused by alcohol(酒精)by the year 2035, researchers say. Drinking too much will cause 7,100 cancer deaths a year by 2035, a rise of 13 percent on the present rate. A study by Sheffield University and Cancer Research UK shows that alcohol will cost the NHS(National Health Service) ￡53billion over the next ten years including ￡2 billion on cancer.

Although alcohol is known to cause many types of cancer including breast and throat most people don’t realize the relation between alcohol and cancer. A survey of 2,100 Britons by the researchers earlier this year found nine in ten did not associate drinking with cancer. The researchers used a computer model to work out the numbers of alcohol-related cancer deaths, hospital admissions(入院)and total costs to NHS over the next 20 years.

The study shows that a fifth of men and 1 in 10 women have alcohol every day---and many of these are middle-aged and middle class. Researchers are very worried about this group as they believe cancer may be caused by drinking over long periods. The study shows that even if the expense stays as it is, alcohol-related cancer deaths will rise from 6,299 in 2015 to 7,097 in 2034. Alcohol will lead to 891, 299 hospital admissions, up from 802, 118 in 2015, and 65, 005 will be caused by cancer.

Earlier this year Chief Medical Officer Dame Sally Davies studied carefully the alcohol guidelines(指导方针)for the first time in thirty years. She told people there was no safe level of drinking and advised them to drink no more than 14 units a week. But researchers say this guidance isn’t enough and want the government to increase a little price per unit of alcohol.