Category: General Blog
Aerobics for the Brain
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As people age, brain function slowly declines. Aside from improving physical fitness and overall health, exercise may also help improve brain function in older adults, researchers report.
In a study published in the journal Frontiers in Aging Neuroscience, researchers evaluated brain function by performing magnetic resonance imaging (MRI) scans on 70 sedentary (but otherwise healthy) adults who were 60-80 years old. The participants were randomly divided into an aerobic walking group or a non-aerobic control group, which performed toning, stretching and strengthening exercises. Each exercise session lasted 40 minutes and was performed three times weekly for one year. The MRI scans of the older individuals were again taken after six months and one year, and compared to MRI scans of 32 healthy younger individuals (age 18-35).
No beneficial effects were observed in the aerobic group after six months of exercise. However, after one year, several improvements in brain function were noted in the aerobic exercise group.
Earlier studies suggested that impaired function in a brain circuit called the default mode network (DMN) may be a sign of aging or neurological conditions, such as Alzheimer's. The DMN is active when a person is at a state of wakeful rest, such as daydreaming. In the present study, researchers found that DMN activity significantly improved in the aerobics group compared to the control group. The subjects in the aerobic group also experienced significant improvements in another brain network, the frontal parietal network, which is important for complex tasks.
By the end of the study, participants in the aerobics group experienced significant improvements in cognition, including memory and attention, compared to the control group.
While the results are promising, additional research is warranted in this area.
For more information about aerobic and non-aerobic exercise, please visit Natural Standard'sSports Medicine database.
Find stillness to cure illness
It’s a busy day, and you’re inundated by non-stop emails, text messages, phone calls, instant message requests, notifications, interruptions of all kinds.
The noise of the world is a dull roar that pervades every second of your life. It’s a rush of activity, a drain on your energy, a pull on your attention, until you no longer have the energy to pay attention or take action.
Heart Disease Risk Varies by Education Level
 Risk for stroke and heart disease falls as education levels rise in high-income countries, but not in nations where earnings are considerably lower, a new study shows.
The findings are published in the September 2010 issue of Circulation.
The study examined data on 61,332 people from 44 countries who had been diagnosed with heart disease, stroke, or peripheral arterial disease — or who had cardiovascular risk factors such as smoking or obesity.
Michael Douglas Cancer: Failure to Diagnose?
Recently, producer and actor Michael Douglas announced he has stage IV throat cancer and is currently undergoing radiation and chemotherapy. According to interviews,Douglas said he sought treatment for a very sore throat earlier in the summer. He saw many doctors who could not find the cause of the problem until very recently.
According to the London Telegraph, it was not until a biopsy in early August that the cancer was revealed. A walnut-sized tumor was discovered at the base of Douglas's tongue. Reportedly, symptoms of a dry and sore throat, ear pain and vocal problems did not point the way to the true problem until months after Douglas first sought help.
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Organizing Disorganized People
Restaurant Fined for Toad Licking Chef Video
Too Little Sleep May Raise Heart Disease Risk
Can a mother’s affection prevent anxiety in adulthood?
Babies whose mothers are attentive and caring tend to grow into happy, well-adjusted children. But the psychological benefits of having a doting mother may extend well beyond childhood, a new study suggests.
According to the study, which followed nearly 500 infants into their 30s, babies who receive above-average levels of affection and attention from their mothers are less likely than other babies to grow up to be emotionally distressed, anxious, or hostile adults..
Predicting the Unpredictable
How to Simplify When You Love Your Stuff
Simplicity. It is a lovely ancient spiritual tradition that has seen a recent resurgence in popularity. As we try to make sense of our erratic economy and the accompanying financial anxiety, it is natural to leap to a less risky lifestyle extreme — stop spending, scale back, live lean.
If you are a regular reader of Zen Habits, you are probably intrigued by the idea of simplifying. In fact, you may have even given up many material things and actively live a very simple life. People who have adopted this level of simplicity, especially in the land of consumerism, are incredibly inspiring and fascinating.
What is Debt Financing?
Potential or current business owners often ask: what is debt financing? In order to illustrate the importance of that question, let us offer another one:
Besides poor management, what is the top reason why a business fails?Â
- Poor concepts?
- Lack of advertising?
- Down economy?
Ovulation gives women’s brains a boost
THE size of a woman's brain changes throughout her menstrual cycle, with some areas growing by as much as 2 per cent in the run-up to ovulation, when women are at their most fertile.
So say Belinda Pletzer and colleagues at the University of Salzburg, Austria, who took MRI scans of the brains of women during their monthly cycles.
Feminist Perspectives on the Body
In terms of the history of western philosophy, the philosophy of embodiment is relatively recent. For much of this history the body has been conceptualised as simply one biological object among others, part of a biological nature which our rational faculties set us apart from, as well as an instrument to be directed and a possible source of disruption to be controlled. Problematically for feminists, the opposition between mind and body has also been correlated with an opposition between male and female, with the female regarded as enmeshed in her bodily existence in a way that makes attainment of rationality questionable. “Women are somehow more biological, morecorporeal, and more natural than men” (Grosz 14). Such enmeshment in corporeality was also attributed to colonised bodies and those attributed to the lower classes (McClintock 1995, Alcoff 2006, 103). Challenging such assumptions required feminists to confront corporeality in order to elucidate and confront constructions of sexual difference.
