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‘Sitting All Day Shrinks The Brain, Increases Chances Of Alzheimers’ |RN

By Appolonia Adeyemi

Human-brain

This photo shows a cross-section of the human brain viewed here is the right half of the brain. Contact: Amy Bernard, Ph.D., Director of Structured Science, Allen Institute for Brain Science amyb@alleninstitute.org +1 (206) 548-7007

Scientists have said that sitting on the desk all day or on the sofa watching television could negatively impact the brain of the affected person. According to a new study, published in ‘PLOS ONE,’ sitting for too long could even boost the risk of dementia. Dementia is a broad category of brain diseases that cause a longterm and often gradual decrease in the ability to think and remember, that is great enough to affect a person’s daily functioning.

Other common symptoms include emotional problems, difficulties with language, and a decrease in motivation. The new research, involving 35 participants, found those with sedentary lifestyles, including sitting down all day, had less grey matter in the medial temporal lobe (MTL) – even if they went for regular brisk walks, cycle rides or jogs. The medial temporal lobe consists of structures that are vital for declarative or long-term memory.

A decline in this area had repeatedly been shown to be an early warning sign of Alzheimer’s disease in middle-aged and elderly patients. Alzheimer’s disease (AD) also referred to simply as Alzheimer’s, is a chronic neurodegenerative disease that usually starts slowly and worsens over time. Alzheimer’s is the cause of 60 percent to 70 percent of cases of dementia.

The new researchers at the University of California, Los Angeles, had discovered those with a sedentary lifestyle had a smaller brain region important in forming memories. The ‘mailonline’ reported that an array of evidence in recent years had already linked sitting for too long to heart disease, diabetes, several forms of cancer and an early death. Researchers quizzed the volunteers, who were aged between 45 and 75, about their levels of exercise. Each person underwent a high-resolution MRI scan, which provides a detailed look at the MTL, an area involved in the formation of new memories.              (New Telegraph)

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