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Mental Challenges Best Protection from Alzheimer’s

Bridge handResearchers find that mental activities, such as playing bridge, is more important than the socialization for minimizing memory loss accompanying Alzheimer’s disease.

Mental stimulation also conveys more cognitive protection than physical activity.

Byrd Institute researchers raised Alzheimer’s mice from young adulthood through old age in one of four housing environments — high social activity, high physical activity, high cognitive activity, or a single-housing control environment.

When the researchers tested the mice in a battery of memory tasks in old age, only the mice given a lifelong high level of cognitive activity were protected against memory impairment.

In fact, these “high cognitive activity” mice performed as well as normal mice that do not develop Alzheimer’s disease. In sharp contrast, the Alzheimer’s mice raised in one of the other three environments performed poorly in multiple memory tasks.

Not only was memory protected in Alzheimer’s mice by a high level of cognitive activity, but brain levels of the abnormal protein beta-amyloid were substantially reduced.

This protein, thought to be key for Alzheimer’s development, remained at soaring levels in the brains of Alzheimer’s mice raised in social or physical activity environments.

Moreover, the researchers found that only the Alzheimer’s mice raised with high cognitive activity had an increase in connections between brain cells. Alzheimer’s mice raised in one of the other three housing environments had much fewer connections between their brain cells.

The new study is published in the Neurobiology of Learning and Memory Journal.

“Our results call into question the earlier human studies suggesting social or physical activity provides protection against Alzheimer’s,” said Dr. Gary Arendash, the lead researcher on the study.

“Alzheimer’s begins in the brain several decades before any symptoms show up,” said Dr. Arendash.

“That means adults in their forties and fifties need to make lifestyle choices now to decrease their risk of getting Alzheimer’s disease later.”

Source: Byrd Institute

Mental Challenges Best Protection from Alzheimer’s

Rick Nauert PhD

Rick Nauert, PhDDr. Rick Nauert has over 25 years experience in clinical, administrative and academic healthcare. He is currently an associate professor for Rocky Mountain University of Health Professionals doctoral program in health promotion and wellness. Dr. Nauert began his career as a clinical physical therapist and served as a regional manager for a publicly traded multidisciplinary rehabilitation agency for 12 years. He has masters degrees in health-fitness management and healthcare administration and a doctoral degree from The University of Texas at Austin focused on health care informatics, health administration, health education and health policy. His research efforts included the area of telehealth with a specialty in disease management.

APA Reference
Nauert PhD, R. (2015). Mental Challenges Best Protection from Alzheimer’s. Psych Central. Retrieved on September 19, 2018, from https://psychcentral.com/news/2007/09/13/mental-challenges-best-protection-from-alzheimers/1275.html

 

Scientifically Reviewed
Last updated: 6 Oct 2015
Last reviewed: By John M. Grohol, Psy.D. on 6 Oct 2015
Published on PsychCentral.com. All rights reserved.