Generate an explanation for the given claim using the provided supporting material from the paragraph. Please consider the following points while generating an output. 1) The claim will always have supporting proof in the paragraph, and the paragraph will have a clear point of view supporting the claim. 2) There can be instances where direct correlation to the claim is not available. Make use of the sentences in the paragraph to provide a corresponding output supporting the claim. 3) The explanation should be at least one and at most twelve sentences long.

Paragraph: Scientists at Vienna University medical school's Institute of Hygiene and Applied Immunology came to the conclusion after analyzing the water quality at 21 "holy" springs and 18 fonts at churches and chapels at various times of year. Only 14 percent of the water samples from holy sources showed no fecal contamination, and none of the springs could be recommended as a source of drinking water, the study presented to a conference in Vienna this week found. The springs held not only fecal contamination - likely the result of poor hygiene - but many also had agricultural nitrates and bugs that can cause inflammatory diarrhoea. "We need to warn people against drinking from these sources," microbiologist Alexander Kirschner said in the study. Kirschner said the healing effects ascribed to holy sources arose from the hygienic conditions of the Middle Ages, when water quality in urban areas was generally so poor that people constantly contracted diarrhoea or other conditions. "If they then came across a protected spring in the forest that was not as polluted and drank from it for several days, their symptoms would disappear. So although in those days they were drinking healthier water, given the excellent quality of our drinking water today, the situation is now completely reversed." The study noted some ways to help address the problem, including regularly replacing holy water in church fonts. One Italian priest has invented a holy water dispenser that dispenses drops of holy water rather than having the faithful dip a hand in, it noted. Claim: Holy water in Austria unsafe to drink: researchers.
Holy water at religious shrines and churches in Austria is often contaminated with fecal matter and bacteria, researchers have found, advising the faithful not to drink it, especially in hospital chapels.

Paragraph: The story does not mention the cost of mammography (or of follow up tests and treatments) to the individual, or, collectively, to society. And these costs are substantial. Based on the results of this study, 2,500 women would have to be screened every other year for a decade in order to prevent one death from breast cancer. As the story points out, during that same time 1,000 of those women would have at least one false alarm and 500 would undergo an unnecessary biopsy, thus adding to the price tag. On balance, this story does a fair job of describing the benefits of screening mammography as seen in this study. It reports the apparent 10 percent reduction in breast cancer deaths, while also pointing out that because relatively few women in the 50-69 age group die of breast cancer, that reduction can also be described as cutting the 10-year risk of death from 4.4 per 1,000 women to 4 per 1,000. The second statistic helps counteract popular assumptions about how many middle-aged women die from breast cancer. However, the framing of a story and who gets the last word sometimes overwhelms evidence-based explanations earlier in the story. That almost happened with this story, which gives the final word to an advocate of annual breast cancer screening for all women beginning by age 40, which is just the sort of blanket recommendation this latest study calls into question. The story includes a comment that because mammograms detect lumps that would not have become life-threatening, five to 15 women may be treated for every one whose life is saved by treatment. The story oversimplifies the methods used by researchers, saying they compared "women who were similar in most ways, except that one group received mammograms and the other didn't," without explaining that this was not a randomized trial where some women were assigned to screening and others weren't, but rather an observational study that looked at data on women during a 9-year period when Norway phased in mammography region by region. The story does alert readers to some of the limitations of the study: one, that a longer follow-up period might have shown more benefit to screening and, two, that the researchers had no information on whether any of the women received mammograms outside of the national screening program. It's a tossup for us to grade and, as we do in most such cases, we'll give the story the benefit of the doubt. Claim: Mammogram benefits more modest than doctors thought
However, it does not explain to readers what is new or different about this study compared to earlier reports. Also, the final word in the story goes to an expert who touts benefits of mammography screening that clash with what was seen in this study. By comparing this story with, for example, the Philadelphia Inquirer and WebMD stories, you see how some of the gaps we've identified were addressed by competitors, giving readers a more complete and helpful story.

Paragraph: Young, professional women are discovering that female-only fitness zones can be what a morning of golf or shooting the hoops is to their male counterparts: a chance to network, negotiate and bond while working out. "Men have been combining fitness and a social aspect for ages, doing business and creating relationships at the same time," said Leanne Shear, trainer and founder of Uplift Studios, a boutique women-only venue in Manhattan. "Women have not, to their detriment." Shear said her studio, which opened in 2012, attracts professional women in their 20's, 30's and 40's, and aims to provide a social atmosphere where they can come together as a community. As for the workouts, Shear believes that while women are certainly capable of doing everything that men do, many find the gym equipment in weight rooms bulky, off-putting and ill-suited to them. Equipment in Shear's studio includes an elliptical machine with a smaller stride better suited to women, and instead of huge plates and bars, there are lots of dumbbells, balls, balancing equipment and body weight exercises. A 2014 report by International Health, Racquet & Sportsclub Association (IHRSA) showed that while health club members are equally likely to be male or female, what they do when they visit the club differs considerably. Women are more likely to gravitate to group exercise classes, Pilates, stretching, yoga, boot camps, and cardiovascular exercise machines, while men are drawn to free weights, resistance machines and sports such as racquetball and squash. Curves International, Inc., the large chain of fitness centers for women, is known for its 30-minute circuit of cardio, strength and stretching training. Hannah Karass, vice president of programs and science for Curves, said the circuit is in a circle for a reason. "The members face each other, help each other," she explained. Karass said Curves has initiated a rigorous high intensity interval training workout designed by trainer Jillian Michaels, of the TV reality show "The Biggest Loser," to attract younger women. Karass, 50, believes women's gyms are simply less intimidating than co-ed clubs. "I think of myself in a big co-ed gym," she said. "If I work with a 10-pound (4.5 kg) dumbbell and I see men lifting 25, there is an emotional reaction." Dr. Barbara Bushman, of the American College of Sports Medicine, said both sexes require a balanced exercise program of aerobic activity, resistance training, and flexibility and, for older adults, balance and agility. "To me the women-only gym fits into the enjoyment aspect," she said. "If someone feels more comfortable in that environment and that helps them to stick with their program better, it's a great thing." She added that women tend to lag behind men in resistance training, which is important for bone health. Being properly fitted on standard machines can also be difficult for smaller women. "At university I was only female in weight room," said Bushman, whose 5ft 10-inch height mitigated the sizing issue. "It wasn't an environment that welcomed women." Shear sees women-only venues as a place where women are free to work their hardest without feeling self-conscious or trying to impress the opposite sex. "The workouts are just as hard and intense as any man's," she said. Claim: Sisterhood shown to be powerful incentive at women's gyms.
Women-only gyms, once seen as the exercise alternative for out of shape women of a certain age, are actively shedding that reputation, fitness experts say.