Navigation Links
'Body Clock' Might Affect Women's Dementia Risk
Date:12/13/2011

TUESDAY, Dec. 13 (HealthDay News) -- An older woman's sleep/wake cycle and levels of physical activity may affect her risk of developing dementia, a new study suggests.

It found that the risk of dementia or "mild cognitive impairment" (a state that sometimes precedes dementia) was higher in older women with weaker circadian rhythms who are either less physically active or more active later in the day, compared to those who have a stronger circadian rhythm and are more active earlier in the day.

"We've known for some time that circadian rhythms, what people often refer to as the 'body clock,' can have an impact on our brain and our ability to function normally," lead author Greg Tranah, a scientist at the California Pacific Medical Center Research Institute, said in an institute news release.

"What our findings suggest is that future interventions such as increased physical activity or using light exposure interventions to influence circadian rhythms, could help influence cognitive [mental] outcomes in older women," he explained.

Tranah and colleagues analyzed data from almost 1,300 healthy women, over age 75, who were followed for five years. At the end of that time, 15 percent of the women had developed dementia and 24 percent had some form of mild cognitive impairment (MCI).

Women with weaker circadian rhythms who had lower levels of physical activity or who were most active later in the day were 80 percent more likely to develop dementia or MCI than those with stronger circadian rhythms who were active earlier in the day, the team found.

"To our knowledge this is the first study to show such a strong connection between circadian activity rhythm and the subsequent development of dementia or MCI," Tranah said. The finding marks an association only, however, and cannot prove cause-and-effect.

"The reasons why this is so are not yet clear," he added. "The changes in circadian rhythm may directly influence the onset of dementia or MCI, or the decrease in activity may be a consequence, a warning sign if you like, that changes are already taking place in the brain. Identifying what the reason is could help us develop therapies to delay, or slow down, the development of brain problems in the elderly."

The study was published online Dec. 7 in Annals of Neurology.

More information

The American Academy of Family Physicians has more about dementia.

-- Robert Preidt

SOURCE: California Pacific Medical Center, news release, Dec. 6, 2011


'/>"/>
Copyright©2010 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. With Anorexia, Body May Hoard Fat in Bones
2. Material tested that could guarantee body protheses for more than 150 years
3. Golds Gym and Us Weekly Join Forces to Present The First-Ever Hollywood Hot Body Awards
4. Golds Gym and Us Weekly Join Forces to Present The First-Ever Hollywoods Hottest Body Awards
5. Golds Gym and Us Weekly Announce Nominees for First Ever Hollywoods Hottest Body Awards
6. Embodying an Evolving Solution Set, References-Online is Now RO
7. Innovation
8. The American Meditation Institute Hosts Mind-Body Medicine Seminars by Dr. Bernie Siegel, Leonard Perlmutter and Dr. Beth Netter
9. K-State professor finds link between low oxygen levels in body and cancer-aiding protein
10. The American Association of Anatomists approves guidelines for body donation programs
11. NutriLuxe Offers Personal, At-Home Body Biochemical Balance Test
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
'Body Clock' Might Affect Women's Dementia Risk
(Date:5/24/2016)... ... , ... Regenerative Medicine is being transformed by ongoing research and clinical findings ... patient results as have been achieved with Okyanos Cell Therapy are paving ... for patients worldwide. , As the Medical Advisory Chairman at Okyanos, Eric Duckers, MD, ...
(Date:5/24/2016)... , ... May 24, 2016 , ... ... choose the perfect data logger for each job, ensuring the best suited solution ... calibrations of MadgeTech data loggers at their lab in Istanbul. , Metroloji Okulu ...
(Date:5/24/2016)... ... May 24, 2016 , ... American Gene Technologies ... to its board of directors. Otterstatter is co-founder, president and CEO of ... technological innovations that lead to broad-based healthcare solutions. , “Jon knows how to ...
(Date:5/24/2016)... ... ... WaterAid launched the #perioddrama campaign to mark Menstrual Hygiene Day on May 28 ... world who do not have access to a toilet, even when they’re on their periods. ... #perioddrama. The (sometimes hilarious) results help shine a light on the awkwardness that women face ...
(Date:5/24/2016)... ... May 24, 2016 , ... ... patient Services To Begin In June , Aloria Health, specializing in a re-imagined, ... opening of Aloria Milwaukee, its first treatment facility for outpatient, day treatment and ...
Breaking Medicine News(10 mins):
(Date:5/24/2016)... Los innovadores de COMBO[TM], ... introduce catéteres para la intervención de extremidades inferiores ... global especializada en el suministro de soluciones vasculares ... incluyendo productos para tratar la enfermedad arterial periférica. ... los dispositivos de primera entrada de la compañía ...
(Date:5/24/2016)... 24, 2016 Dutch surgeons have launched a ... the world and treat patients on a global scale. Medical professionals ... Asia and the US have already signed ... and networking in a totally secure environment. Education  ... zone working together with a surgeon at Harvard to treat a ...
(Date:5/23/2016)... PUNE, India , May 23, 2016 ... is spread across 163 pages, profiles 12 companies and ... 280 tables and figures on the industry and its ... study that is comprehensive in nature, details the current ... of the industry including definitions, classifications, applications and industry ...
Breaking Medicine Technology: