Tag Archives: sedentary lifestyle

Sitting is Bad for Your Brain, Not Just Your Heart or Metabolism

It’s been a couple of years now since I first learned the dangers of prolonged sitting. Someone even called ‘sitting the new smoking.‘ I thought that might have been excessive – might have been. However, this new information from UCLA researchers certainly adds resonance to the problem for seniors.

sitting-brain-health-neuroscienccenews-public.jpg

 

Sitting too much is linked to changes in a section of the brain that is critical for memory, according to a preliminary study by UCLA researchers of middle-aged and older adults.

Studies show that too much sitting, like smoking, increases the risk of heart disease, diabetes and premature death. Researchers at UCLA wanted to see how sedentary behavior influences brain health, especially regions of the brain that are critical to memory formation.

METHOD

UCLA researchers recruited 35 people ages 45 to 75 and asked about their physical activity levels and the average number of hours per day they spent sitting over the previous week. Each person had a high-resolution MRI scan, which provides a detailed look at the medial temporal lobe, or MTL, a brain region involved in the formation of new memories.

The researchers found that sedentary behavior is a significant predictor of thinning of the MTL and that physical activity, even at high levels, is insufficient to offset the harmful effects of sitting for extended periods.

This study does not prove that too much sitting causes thinner brain structures, but instead that more hours spent sitting are associated with thinner regions, researchers said. In addition, the researchers focused on the hours spent sitting, but did not ask participants if they took breaks during this time.

The researchers next hope to follow a group of people for a longer duration to determine if sitting causes the thinning and what role gender, race, and weight might play in brain health related to sitting.

IMPACT

MTL thinning can be a precursor to cognitive decline and dementia in middle-aged and older adults. Reducing sedentary behavior may be a possible target for interventions designed to improve brain health in people at risk for Alzheimer’s disease, researchers said.

Please check out my Page – Do you know the dangers of too much sitting? for more details on the common practice.

Tony

Advertisements

6 Comments

Filed under aging brain, brain, brain function, brain health, Exercise, memory, prolonged sitting, sedentary lifestyle, sitting too long

A Physiologic Link Between Heart Disease and A Sedentary Lifestyle

There are some wonderful thoughts here on achieving good health. I hope you will read it and reap.

Eat less; move more; live longer.

I think it might be worth checking out my Page – Do You Know the Dangers of Too Much Sitting?

Tony

D.I.G.

And A Discussion About Exercises

The concept that being inactive and heart disease are related is a pretty well-accepted idea in our society today. There are many explanations for why this occurs and they all mainly have to do with metabolism, food intake, and energy expenditure.  (This is why you’re supposed to run 10 miles if you eat a strip of bacon, right?)

While these ideas are certainly not wrong, I think there’s an important concept that many of us are missing when we try to lower our heart and vessel disease risk.

What I’m talking about here is the concept of a rising “vascular age” due to inactivity and stiffness of our bodies.

But first, let’s talk about blood flow in the body.

How Blood Normally Flows In The Body

For the sake of discussion, let’s start thinking about blood flow at the level of the heart. The heart is a…

View original post 809 more words

1 Comment

Filed under heart disease, sedentary lifestyle, sitting