Spanish sisters who drank beer for 45 days straight as part of a medical research project are part of a growing trend to study nuns whose unique healthy, celibate lifestyle makes them ideal for such purposes.Every year hundreds of Catholic nuns are weighed, measured, poked and prodded in the name of medical research, the US ABC News reports.
In a study recently conducted by the Centre for Information on Beer and Health in Spain, 50 nuns drank a half-liter of beer every day for 45 days.
Six months later they took 400 milligrams of hops, reported Reuters.
The study found that cholesterol rates fell by 6 percent in those sisters with high levels.
"We did it for the good of humanity," Sr Almerinda Alvarez told the newspaper El Pais.
Sr Almerinda's American counterparts, who have participated in studies on osteoporosis, Alzheimer's disease and other ailments, could not agree more.
Scientists believe nuns' unique lifestyles, free of sex and children, and the similar health conditions that nuns share with one another, make them an ideal group for broad scientific studies.
And the nuns' willingness to volunteer for studies - some of which follow them for decades - is part of the reason why scientists like working with them.
"One of the major reasons we looked at nuns was because of their altruism," said David Snowdon, director of the Nun Study at the University of Kentucky's Sanders-Brown Center on Aging.
Snowdon's Nun Study, an effort to discover indicators for Alzheimer's disease, has tracked 678 members of the School Sisters of Notre Dame congregation.In addition to their altruism, the nuns were chosen because Snowdon's team wanted to isolate factors in early life that may contribute to Alzheimer's disease, and the nuns' similar lifestyles made them a good control group - after the nuns took their vows, many aspects of their lives, including diet and access to health care, were the same for all of them.
The study initially compared the autobiographies of 93 nuns born before 1917 and written when they first took their vows in their 20s.
The scientists found that those nuns who wrote more complicated sentences as young women were less likely to develop Alzheimer's in old age.
The researchers believe this may offer evidence early in life that indicates a likelihood of later developing Alzheimer's.
"We had a window into their early lives that we don't normally get once someone begins losing their memory," Snowdon said.
"We could go back and look at the archives - histories, autobiographies, high school transcripts -and see a version of them 60 to 80 years before they developed Alzheimer's disease."
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