September 2011

beef tenderloin a source of vitamin b12

Vitamin B12 is found in meat, fish and dairy,

Older people with low blood levels of vitamin B12 markers may be more likely to have lower brain volumes and have problems with their thinking skills, according to researchers at Rush University Medical Center.

The results of the study are published in the Sept. 27 issue of Neurology, the medical journal of the American Academy of Neurology.

Foods that come from animals, including fish, meat, especially liver, milk, eggs and poultry are usual sources of vitamin B12.

The study involved 121 older residents of the South side of Chicago who are a part of the Chicago Health and Aging Project (CHAP), which is a large, ongoing prospective Rush a biracial cohort of 10,000 subjects over the age of 65.

The 121 participants had blood drawn to measure levels of vitamin B12 and B12-related markers that can indicate a B12 deficiency. The same subjects took tests measuring their memory and other cognitive skills.

An average of four-and-a-half years later, MRI scans of the participants’ brains were taken to measure total brain volume and look for other signs of brain damage.

Having high levels of four of five markers for vitamin B12 deficiency was associated with having lower scores on the cognitive tests and smaller total brain volume. [continue reading…]

slad on a fork

istockphoto

Deakin University health researchers have found that poor diet may be a risk factor for mental health problems during adolescence.

In a study of 3000 Australian adolescents, published in the journal PLoS One, the Deakin researchers revealed that diet quality predicted mental health in adolescents over time, suggesting that it might be possible to use diet to prevent mental health problems developing in the first place.

“We found that diet quality and mental health were linked, with healthier diets associated with better mental health in 2005 and also predicting better mental health in 2007. This relationship even persisted when mental health at the starting point was taken into account,” said Dr Felice Jacka from Deakin University’s Barwon Psychiatric Research Unit based at Barwon Health, who led the study.

“Three quarters of psychiatric illnesses begin before the age of 25 and the average age that depressive illnesses start is only 13 years old. Once an individual experiences depression, they are more likely to experience it again. We believe that diet may be an important environmental factor influencing the development of mental health problems during adolescence, when rapid growth makes good nutrition particularly important.

“This new evidence suggests that it might be possible to prevent some cases of depression developing in the first place by ensuring that the diets of adolescents are sufficiently nutritious.” [continue reading…]

So You Think Your Boss Is a Psychopath?

Man-with-a-crazy-look-in-his-eyes

Image credit: istockphoto

If you heard about a recent study claiming one in 25 executive leaders meet the criteria for a psychopathic personality and thought: “That sounds like MY boss,” you might be wondering what to do about it. Evelyn Williams, associate vice president of leadership development/professor of practice at Wake Forest University Schools of Business says knowing your boss’s work style could be the key to succeeding. Jamie Dickey Ungerleider, Ph.D, associate professor of Family & Community Medicine at Wake Forest Baptist Medical Center says that might help you in the short term, but a longer term solution is to find a new boss.

“Leaders who are psychopaths are extremely charming, highly manipulative, see other people as objects and don’t feel guilty about using people to reach their own ends,” Dr. Ungerleider says. “Most people at work have good intentions, but a psychopathic boss does not.”

Ungerleider says that evaluations and reviews won’t usually reveal the problems a psychopathic boss has. “There’s usually a segment of the population who finds them utterly charming and don’t understand why others wouldn’t trust them.”
But if you can’t make a move away from such an employer, “Recognize that you still have a mutually dependent relationship,” Williams says. “Knowing your boss’s work style gives you a road map you can use to make adjustments and deliver the work that will please a difficult boss.”

Williams says you should ask yourself these questions to determine your best working road map:

  • How does my boss like to communicate?
  • Does my boss focus on details or big picture thinking?
  • Which is more important to my boss: analysis and data or human relationships?
  • Does my boss use introverted or extroverted discussion patterns?

 

  •  When it comes to decisions, does my boss like quick resolution or decision by committee?

“Knowing the answers to these questions allows you to take control of your working relationship and do a good job of managing up,” says Williams. “You won’t feel like the victim and will have control of how to manage the relationship since there are multiple ways to accomplish these tasks.”

But Dr. Ungerleider, says too much success at work could also been seen as a threat to a psychopathic boss. “These people use the skills and talents of people under them to shine for their own managers,” Dr. Ungerleider says. “If you shine a little too brightly while you’re helping them stand out, that becomes a threat. Most of them won’t hesitate to throw you under the bus.”
Both agree on seeking validation from your co-workers in and outside your department. Dr. Ungerleider says you need to know that others have the same concerns.
“Network outside your department and make sure you document what’s happening in yours. That doesn’t mean a vindictive accounting, but rather keeping track of decisions made or assignments given so that you and your boss can agree on your work both in terms of load and delivery,” Williams said. “We’re all fallible humans and need to manage our stress loads — some people may appear like psychopaths simply because they are overwhelmed in their current roles.”

Dr. Ungerleider also says not every bad boss is a psychopath. “Sometimes people put a boss in that category because they’re being treated badly, but those are bad actions or bad decisions, not a personality disorder.”

Source: Wake Forest University

Wouldn’t it be nice if all those hours kids spent glued to their PlayStation 3, Xbox 360 or Nintendo DS video games actually resulted in something tangible? Better grades, perhaps? Improved concentration? Superior driving skills?

Over the past decade, many studies and news media reports have suggested that action video games such as Medal of Honor or Unreal Tournament improve a variety of perceptual and cognitive abilities. But in a paper published this week in the journal Frontiers in Psychology (http://www.frontiersin.org/psychology), Walter Boot, an assistant professor in Florida State University’s Department of Psychology, critically reevaluates those claims.

Together with FSU psychology doctoral student Daniel Blakely and University of Illinois collaborator Daniel Simons, Boot lays out what he believes is a persuasive argument that much of the work done over the past decade demonstrating the benefits of video game play is fundamentally flawed.

“Despite the hype, in reality, there is little solid evidence that games enhance cognition at all,” he said. [continue reading…]