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Archive for September, 2011
September 19, 2011
Seniors Are Saying No to High Tech
The digital revolution may be changing the way we live and work. But large numbers of older Americans are not going online, using smartphones, or even participating in the benefits of electronic healthcare tools specifically designed to help them.
The costs of not participating in electronic communications are growing. Government and the private sector are shifting to online tools as their dominant form of public communication. It saves time and money, and provides more responsive public services. But surveys of Internet and technology use show that many, if not most, older consumers are bypassed with online communication.
Earlier this year, for example, the U.S. Social Security Administration said it would stop sending paper statements to Americans explaining their Social Security benefits. Instead, such statements would be available online. As part of a broader government policy, Social Security will also be ending paper-based benefit checks by May 2013.
The Social Security Administration says growing use of the Internet will allow it to save money on paper-based statements and still meet public needs. However, while the agency has stopped mailing out its annual statement of benefits, it has yet to begin offering this information online. And an agency spokesman says privacy rules prevent the agency from even measuring how many people visit its website. The agency knows that total page views on the site are rising, the spokesman said, but it is not allowed to collect specifics on how many beneficiaries are actually using the site.
The most probable answer, however, is “not many.” According to the Pew Research Center’s Internet & American Life Project, only 42 percent of Americans age 65 and older go online at all. Of these, even smaller percentages use the Internet to research information on specific topics. These numbers are rising, but still are roughly half the level of younger Americans. The Social Security Administration does say it plans to provide paper-based statements to older people, but has not yet spelled out the timing of this effort.
Laurie Orlov is a former Forrester Research analyst who started her own company, Aging in Place Technology Watch, to research and provide consulting advice about seniors and technology. While there have been some gains in technology use by older consumers, price and complexity are barriers to larger gains, as is seniors’ comfort with familiar ways of doing things.
“People are pretty inflexible” about technology use, she says, “so there’s a chance those numbers won’t improve much.” Is it fair to describe seniors as the lost generation in terms of technology? “I think they are,” she says.
Orlov can rattle off an impressive list of the costs to seniors of not being online, from paying extra for airline tickets by using a reservations agent, to missing out on online coupons and other digital bargains, to becoming isolated from grandchildren and other family members who increasingly rely on digital devices to communicate.
Baby boomers, by contrast, are using new technology at rates nearly equal to younger consumers. They are likely to continue such habits as they join the ranks of senior citizens, and it will be this trend that will firmly establish electronic communication and commerce as a senior activity.
For now, Orlov says, she’s extremely optimistic that computers and hand-held tablets and other devices will become easier to use and more friendly to inexperienced and older consumers alike.
Ingenious “apps” and uses for smartphones and other mobile communications devices are driving broad gains in consumer adoption. Orlov thinks the improvements in user interfaces and ease-of-use gains in these mass markets will help all consumers, including seniors. “I think technology is becoming multi-age friendly,” she says.
“We’re at the beginning of a remarkable time,” she says. “It’s going to get better because it can. That’s the nature of technology.”
By Phil Moeller
September 13, 2011
Dieting Beats Exercise for Diabetes Prevention in Older Women, Combo Is Best Strengthening exercise appears to have greater benefits for insulin resistance than aerobic exercise
Lifestyle changes that include dieting to lose weight and exercise can help prevent type 2 diabetes, but researchers were uncertain which element contributes more. A new study suggests that, in postmenopausal women at least, dietary weight loss alone is effective while exercise alone is not effective, and both together are best of all.
“The effects seems to be additive,” said Caitlin Mason, Ph.D., lead study author.
“The women who did both diet and exercise together had the greatest weight loss and greatest improvement in insulin and blood sugar control.”
In light of the additional benefits of exercise, such as preserving muscle mass during weight loss, “a combined program is the way to go,” said Mason, a postdoctoral fellow in public health sciences at the Fred Hutchinson Cancer Research Center.
For the study, which appears online and in the October issue of the American Journal of Preventive Medicine, 439 inactive, overweight postmenopausal women were randomly assigned to participate in a dietary weight loss program, an aerobic exercise program, or a program that included diet and exercise, or were told not to change their eating or exercise patterns.
Participants received diet and exercise counseling in groups of eight to 15 women, rather than individually.
The researchers estimated the women’s insulin resistance – which reflects how well or poorly the body metabolizes sugar – and their fasting blood sugar, when the study began and after 12 months. Increased insulin resistance and elevated blood sugar are signs that the risk of diabetes is high.
Insulin resistance improved significantly with diet and a bit more in the diet-plus-exercise group, but not with exercise alone, compared to women who made no changes. Exercise alone did improve fasting glucose, but only when it was elevated to begin with.
Women in the diet group lost an average of 8.5 percent of their initial body weight, while those who had diet plus exercise lost more than 10 percent. Improvement in insulin resistance was proportional to the amount of weight lost.
Jill Crandall, M.D., director of the Diabetes Clinical Trials Unit at the Albert Einstein College of Medicine, said she was “most impressed” by the magnitude of weight loss achieved in the study, “but the effect this will have on glucose metabolism or diabetes risk in the long run is a little hard to say from this paper.”
One of the most useful things the study did was to show that “a group-based program could be very effective for weight loss,” added Crandall, who has no affiliation with the study. From a public health perspective, she said, “anything done in the group setting is more feasible.”
She noted that strengthening exercise appears to have greater benefits for insulin resistance than aerobic exercise, and suggested that its inclusion in future studies might be “a desirable feature.”
By Carl Sherman, Health Behavior News Service
September 6, 2011
When Lapses Are Not Just Signs of Aging
By JANE E. BRODY
Who hasn’t struggled occasionally to come up with a desired word or the name of someone near and dear? I was still in my 40s when one day the first name of my stepmother of 30-odd years suddenly escaped me. I had to introduce her to a friend as “Mrs. Brody.”
But for millions of Americans with a neurological condition called mild cognitive impairment, lapses in word-finding and name recall are often common, along with other challenges like remembering appointments, difficulty paying bills or losing one’s train of thought in the middle of a conversation.
Though not as severe as full-blown Alzheimer’s disease or other forms of dementia, mild cognitive impairment is often a portent of these mind-robbing disorders. Dr. Barry Reisberg, professor of psychiatry at New York University School of Medicine, who in 1982 described the seven stages of Alzheimer’s disease, calls the milder disorder Stage 3, a condition of subtle deficits in cognitive function that nonetheless allow most people to live independently and participate in normal activities.
One of Dr. Reisberg’s patients is a typical example. In the two and a half years since her diagnosis of mild cognitive impairment at age 78, the woman learned to use the subway, piloted an airplane for the first time (with an instructor) and continued to enjoy vacations and family visits. But she also paid some of the same bills twice and spends hours shuffling papers.
Dr. Ronald C. Petersen, a neurologist at the Mayo Clinic College of Medicine in Rochester, Minn., described mild cognitive impairment as “an intermediate state of cognitive function,” somewhere between the changes seen normally as people age and the severe deficits associated with dementia.
While most people experience a gradual cognitive decline as they get older (only about one in 100 lives long without cognitive loss), others experience more extreme changes in cognitive function, the neurologist wrote in The New England Journal of Medicine in June. In population-based studies, mild cognitive impairment has been found in 10 percent to 20 percent of people older than 65, he noted.
Dr. Petersen described two “subtypes” of the condition, amnestic and nonamnestic, that have different trajectories. The more common amnestic type is associated with significant memory problems, and within 5 to 10 years usually — but not always — progresses to full-blown Alzheimer’s disease, he said in an interview.
“Subtle forgetfulness, such as misplacing objects and having difficulty recalling words, can plague persons as they age and probably represents normal aging,” he wrote. “The memory loss that occurs in persons with amnestic mild cognitive impairment is more prominent. Typically, they start to forget important information that they previously would have remembered easily, such as appointments, telephone conversations or recent events that would normally interest them,” like the outcome of a ballgame would a sports fan.
The forgetfulness is often obvious to those who are affected and to people close to them, but not to casual observers.
The less common nonamnestic type, which is associated with difficulty making decisions, finding the right words, multitasking, visual-spatial tasks and navigating, can be a forerunner of other kinds of dementia, Dr. Petersen said.
In general, Dr. Reisberg said, “mild cognitive impairment lasts about seven years before it begins to interfere with the activities of daily life.”
The Correct Diagnosis
Distinguishing mild cognitive impairment from the effects of normal aging can be challenging. Typically, new patients take a short test of mental status, provide a thorough medical history and are checked for conditions that may be reversible causes of impaired cognition. Problems like depression, medication side effects, vitamin B12 deficiency or an underactive thyroid can mimic the symptoms of mild cognitive impairment.
Other tests, like an M.R.I. or CT scan of the brain, can look for evidence of a stroke, brain tumor or leaky blood vessel that may be impairing brain function.
It is natural, Dr. Petersen said, for patients and their families to want to know whether and how quickly the disorder might progress. While patients decline by about 10 percent each year, on average, certain factors are associated with more rapid progression. Among these are the presence of a gene called APOE e4, more common among patients with Alzheimer’s disease; a reduced hippocampus, a region of the brain important to memory; and a low metabolic rate in the temporal and parietal regions of the brain.
Amyloid plaques in the brain, while a hallmark of Alzheimer’s disease and a predictor of progression, have also been found at autopsy in people with perfectly normal cognitive function.
Preserving Cognitive Function
Despite a number of clinical trials that tested various medications, no drug to treat mild cognitive impairment has been approved by the Food and Drug Administration. But experts like Dr. Reisberg and Dr. Petersen suggest several approaches that may slow the decline in cognitive function.
Although studies did not show that medications like donepezil (brand name Aricept) and memantine (Namenda), both used to treat Alzheimer’s disease, change the ultimate course of mild cognitive impairment, Dr. Reisberg said they can be useful temporary treatments that may stabilize patients for a few years.
Although the drugs are not approved for this condition, licensed physicians can prescribe approved medications “off label.” “Clinicians have to work with what we have,” Dr. Reisberg said.
There are people who think they are having memory problems, but tests do not show anything definitive. Some may be in Stage 1 of Alzheimer’s disease, Dr. Reisberg said, and perhaps could benefit from early treatment with the drugs.
It is also important to reduce cardiovascular risk factors like smoking, elevated cholesterol and high blood pressure; keep blood sugar at normal levels; minimize stress (which in animal studies can cause the hippocampus to shrink); and avoid anticholinergic drugs that can interfere with brain chemicals important to memory. These include Demerol to treat pain, Detrol to treat a leaky bladder, tricyclic antidepressants, Valium, and over-the-counter medications with Benadryl (diphenhydramine), like Tylenol PM, Dr. Petersen said.
Some cognitive rehabilitation exercises, like computer games that enhance focus, may be helpful, Dr. Petersen said, but there have been few good studies to demonstrate a benefit. Compensatory techniques, like taking notes, creating mnemonics and making structured schedules, can be useful aids, he added.
But most promising is regular physical exercise, which in animal studies was found to reduce the accumulation of amyloid in the brain. An Australian study in patients with memory problems showed that brisk walking for 150 minutes a week improved cognitive function.