Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Study links adolescent IQ/activity levels with risk of dementia

04.07.2005


Your IQ and extracurricular interests as a teenager may forecast your memory and thinking abilities decades later.



A new study by researchers at the University Memory and Aging Center, affiliated with Case Western Reserve University (Case) and University Hospitals of Cleveland (UHC), found that persons who were more active in high school and who had higher IQ scores, were less likely to have mild memory and thinking problems and dementia as older adults. Their results are published in the July 2005 issue of The Journal of the American Geriatrics Society.

Said Thomas Fritsch, Ph.D., the study’s lead author, "We found that, controlling for gender and education level, higher adolescent IQ and greater activity level were each independently associated with a lower risk for dementia and mild cognitive impairments. Conversely, those who were lower on the IQ continuum and who participated in fewer activities in high school had a higher risk of cognitive impairments."


Dementia broadly refers to neurological conditions that cause decline in memory and thinking abilities (cognition) and the ability to perform activities of daily living. Alzheimer’s disease (AD) is the most common cause of dementia in persons 65 years and older. According to estimates from the Alzheimer’s Association, 4.5 million people have Alzheimer’s nationally.

"The findings may help scientists in their efforts to understand the earliest roots of dementia," said Fritsch. "The knowledge gained from our research may also be useful to those who are developing models of AD. Such models might provide clues as to when it’s best to try intervene with new therapies and treatments for persons with memory problems. The findings may also help those who are seeking ways to prevent the development of memory problems in adulthood."

The Case researchers used historical data from high school records and yearbooks from the mid-1940s to create a picture of the students’ abilities and interests as teens. In 2002, interviews with the graduates, now in their 70s, and their family members were conducted to learn about the adult cognitive status of each subject. The research team reported on data collected from nearly 400 graduates.

"We found some very interesting associations between our early-life and late-life measures," said Fritsch. The article was written by Fritsch, an instructor of neurology at the Case School of Medicine and collaborators in the University Memory and Aging Center and at John Carroll University. The research was supported by grants from the NIH-NIA and the American Health Assistance Foundation.

A particular strength of the Case study is the use of objective measures of cognitive ability (IQ) collected in the teen years. Also, no study has yet reported on associations between teen activity levels and dementia risk using objective measures (i.e., extracurricular activity participation).

According to Fritsch, "Our findings confirm that markers for dementia risk can be found early in life. However, while our research implicates a role for IQ and activity level in youth, many other factors, alone or in combination, also influence who will and will not develop dementia. As we know, some very bright and active people develop dementia, while others who are less gifted and who were inactive as teenagers, do not. This indicates that the causes of dementia are complex and are determined by a host of factors."

According to the Case research team, it is premature to make lifestyle recommendations to teenagers based only on a single study. However, Fritsch commented, "It’s a safe bet that being intellectually engaged, physically active, and socially connected has many health benefits across the lifespan and is to be recommended."

George Stamatis | EurekAlert!
Further information:
http://www.case.edu

More articles from Studies and Analyses:

nachricht Antarctic Ice Sheet mass loss has increased
14.06.2018 | Technische Universität Dresden

nachricht WAKE-UP provides new treatment option for stroke patients | International study led by UKE
17.05.2018 | Universitätsklinikum Hamburg-Eppendorf

All articles from Studies and Analyses >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Temperature-controlled fiber-optic light source with liquid core

In a recent publication in the renowned journal Optica, scientists of Leibniz-Institute of Photonic Technology (Leibniz IPHT) in Jena showed that they can accurately control the optical properties of liquid-core fiber lasers and therefore their spectral band width by temperature and pressure tuning.

Already last year, the researchers provided experimental proof of a new dynamic of hybrid solitons– temporally and spectrally stationary light waves resulting...

Im Focus: Overdosing on Calcium

Nano crystals impact stem cell fate during bone formation

Scientists from the University of Freiburg and the University of Basel identified a master regulator for bone regeneration. Prasad Shastri, Professor of...

Im Focus: AchemAsia 2019 will take place in Shanghai

Moving into its fourth decade, AchemAsia is setting out for new horizons: The International Expo and Innovation Forum for Sustainable Chemical Production will take place from 21-23 May 2019 in Shanghai, China. With an updated event profile, the eleventh edition focusses on topics that are especially relevant for the Chinese process industry, putting a strong emphasis on sustainability and innovation.

Founded in 1989 as a spin-off of ACHEMA to cater to the needs of China’s then developing industry, AchemAsia has since grown into a platform where the latest...

Im Focus: First real-time test of Li-Fi utilization for the industrial Internet of Things

The BMBF-funded OWICELLS project was successfully completed with a final presentation at the BMW plant in Munich. The presentation demonstrated a Li-Fi communication with a mobile robot, while the robot carried out usual production processes (welding, moving and testing parts) in a 5x5m² production cell. The robust, optical wireless transmission is based on spatial diversity; in other words, data is sent and received simultaneously by several LEDs and several photodiodes. The system can transmit data at more than 100 Mbit/s and five milliseconds latency.

Modern production technologies in the automobile industry must become more flexible in order to fulfil individual customer requirements.

Im Focus: Sharp images with flexible fibers

An international team of scientists has discovered a new way to transfer image information through multimodal fibers with almost no distortion - even if the fiber is bent. The results of the study, to which scientist from the Leibniz-Institute of Photonic Technology Jena (Leibniz IPHT) contributed, were published on 6thJune in the highly-cited journal Physical Review Letters.

Endoscopes allow doctors to see into a patient’s body like through a keyhole. Typically, the images are transmitted via a bundle of several hundreds of optical...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Munich conference on asteroid detection, tracking and defense

13.06.2018 | Event News

2nd International Baltic Earth Conference in Denmark: “The Baltic Sea region in Transition”

08.06.2018 | Event News

ISEKI_Food 2018: Conference with Holistic View of Food Production

05.06.2018 | Event News

 
Latest News

Graphene assembled film shows higher thermal conductivity than graphite film

22.06.2018 | Materials Sciences

Fast rising bedrock below West Antarctica reveals an extremely fluid Earth mantle

22.06.2018 | Earth Sciences

Zebrafish's near 360 degree UV-vision knocks stripes off Google Street View

22.06.2018 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>