user: ROLAND NARROWED HIS EYES AND STARED UPWARD INTO THE DARKNESS, across the top of Mont Segur toward the Cathar fortress. Standing on a high walkway of planks behind the palisade of the crusaders' small wooden fort, he heard faraway voices and saw torches moving on the Cathar rampart. The two men on watch with him that night, a sergeant from Champagne and a young man-at-arms from Brittany, were talking in low tones about the women to be had far below, at the foot of the mountain. They seemed not to see the activity about the Cathar stronghold on the upper peak of the mountaintop opposite their own fort. But Roland, knowing Diane was in the besieged fortress, could not take his eyes from it. He knew he had to act soon. Each day the crusaders grew stronger and the Cathars weaker. Once the Cathar stronghold fell, the crusaders would slaughter all within, including Diane. The sergeant, chuckling, was offering his young companion a wineskin. The Breton never received it. From behind the Cathar wall came the sound of a huge thump, as if a giant's fist had pounded Mont Segur. Roland recognized the sound, and fought panic as he thrust his arms out, trying to push the other two men toward the ladder. But there was no time for them to climb down to safety. The thump was the counter-weight of a stone-caster, and the whistling noise that followed fast upon it was the rock it had thrown. A shape as big as a wine barrel blotted out the stars. The stone hit the parapet beside Roland, and the whole palisade shuddered. Roland caught a glimpse of the sergeant's horrified face and heard his scream as the boulder struck him, crushing him to the ground. According to the above context, choose the correct option to answer the following question. Question: Roland pushed the men to the ladder: Options:  A. After he heard the thumping noise  B. After the stone hit the paraphet  C. not enough information  D. After the stronghold fell
A
(Question)
Have you ever wondered whether it’s worth your while to encourage an older person to start exercising? In 2014, the top-notch journal JAMA published the results of a fantastic research project: a study in which 1635 sedentary older adults (aged 70-89) were assigned to get either a structured exercise program, or a program of “successful aging” health education. The researchers called it the Lifestyle Interventions and Independence for Elders (LIFE) study. (You can read the full study here.) During the LIFE study, the two groups were followed for a little over 2.5 years. And by the end of the study, guess which group of volunteers was more likely to still walk a quarter of a mile (without a walker)? That’s right. When it came to avoiding “major mobility disability” — which the researchers defined as becoming unable to walk 400 meters or more — a structured exercise program was better than a program of healthy aging education. Specifically, the researchers found that 30% of the exercisers experienced a period of major disability, compared to 35.5% of the seniors enrolled in the healthy aging education program. This is a very encouraging finding! That said, it’s also a bit sobering to realize that even with exercise, almost 1 in 3 older adults experienced a period of limited mobility, of which half lasted 6 months or more. In this post, I’ll share some more details on this study, because the results provide a wonderful wealth of information that can be helpful to older adults, family caregivers, and even geriatricians such as myself. Want to know how often the exercisers experienced “adverse events”? (Hint: often!) Wondering just what the structured exercise program involved? (Hint: more than walking!) Let’s dig into the details! At the end of this post, I’ll share my list of key take-home points for older adults and family caregivers. Who were the study volunteers? Whenever you read about a research study, it’s important to understand how the study volunteers compare to the older adults in *your* life. One of... According to the above context, choose the correct option to answer the following question. Question: Who published the results of the research study on 1635 sedentary adults that were grouped into exercise and health education groups in 2014? Options:  A. Elderly Digest  B. not enough information  C. JAMA  D. Eldery Thinking Magazine
(Answer)
C
Question: Dietary supplements are big business, with around half of the Australian population using at least one type per year; most commonly a multivitamin and mineral pill. Many people take supplements as a form of dietary insurance in case they are not meeting their nutrient needs from foods alone. Others take them as a form of health insurance – to protect against certain diseases. Some just take them out of habit. Supplements do have a role to play in some situations. People with a diagnosed deficiency, those with malabsorption conditions, women planning pregnancy, and people with very poor diets all can benefit from specific nutrient supplementation. But what about the benefit of supplements across the broad population? The mantra of most health professionals, which is even etched on the label of many supplements, is that supplements may only be of assistance if dietary sources are lacking. To see if this is supported by solid evidence, a systematic review of 63 clinical trials involving some form of supplementation in non-pregnant adults was carried out by a team of medical researchers. The clinical trials were broad in their nature with many nutrients studied including vitamins A, B6, B12, C, D and E; folic acid; calcium; selenium, omega-3 fatty acids; ginkgo biloba; glucosamine; saw palmetto; and milk thistle. All of the studies were randomised controlled trials and evaluated a range of health outcomes including risk of heart disease, cancer, diabetes, bone fractures, cognitive function and all-cause mortality. From the 63 studies, no benefit was seen in 45 studies with 10 of these showing a trend towards harm and just two showing a trend towards a benefit. Of the remaining studies, four showed harm with a greater risk of cancer with beta-carotene and a higher risk of fractures with a once-yearly dose of vitamin D. One study showed a lower risk of cancer with selenium supplementation, but this was not validated in much larger trials. Twelve studies showed a benefit and these mostly involved vitamin D... According to the above context, choose the correct option to answer the following question. Question: What effects did the scientists study? Options:  A. Positive effects  B. not enough information  C. Dietary effects  D. Negative effects
Answer:

assistant: A