Some data suggests that chronic brain hypoxia associated with anemia may contribute to the development of dementia. As well, anemia is considered to be a byproduct of a deficiency of micronutrients like iron or vitamin B12 that may result in cognitive impairment . Kristina Yaffe, from the University of California/San Francisco (UCSF; California, USA), and colleagues analyzed data collected on 2,552 participants in the Health, Aging, and Body Composition study, who lived in the community and who at the study’s start were ages 70 to 79 years, independently mobile, and free of dementia. During the 11 years of follow-up, 18% developed dementia, with the rate higher among seniors with anemia as defined by the WHO criteria of a hemoglobin concentration under 13 g/dL for men and 12 g/dL for women (23% versus 17%). The study authors warn that: “Among older adults, anemia is associated with an increased risk of developing dementia. Findings suggest that further study of anemia as a risk factor for dementia and a target for intervention for cognitive health is warranted.”
Hong CH, Falvey C, Harris TB, Simonsick EM, Satterfield S, Ferrucci L, Metti AL, Patel KV, Yaffe K. “Anemia and risk of dementia in older adults: Findings from the Health ABC study.” Neurology. 2013 Aug 6;81(6):528-533.
Levels of cortisol, the stress hormone, tend to be more stable in people with positive personalities.
Low hemoglobin levels in older adults may predict a long-term risk of developing dementia.
Abundant in the amino acid, l-Citrulline, watermelon juice can relieve sore muscles.
The blood cancer non-Hodgkin lymphoma occurs at greater incidence in relation to proximity near petroleum refineries and manufacturing plants.
Limited physical activity, a diet low in fruits and vegetables, and smoking are independently associated with risk of disability, among older men and women.
Genistein, a soybean compound, holds promise as an effective HIV treatment without the drug resistance issues faced by current therapies.
Irish researchers observe a slower rate of cognitive decline among elderly patients taking angiotensin-converting enzyme (ACE) inhibitors for blood pressure con
Sponge-like material, which expands and contracts in response to blood sugar levels, releases insulin contained in its core, as the body needs it.
Chinese men who practiced tai chi, a form of mind-body exercise, were less likely to die over a five-year period, as compared to sedentary men.
Low Vitamin D levels may increase a person’s risk of physical limitations, among older men and women.
Physical activity reorganizes the brain so that its response to stress is reduced and anxiety is less likely to interfere with normal brain function.
A standardized extract of ginkgo biloba, improved the proliferation of neural stem cells in the subependymal zone of vascular dementia, in a lab animal model.
Testosterone gel improves performance on a specific cognitive task, among postmenopausal women with normal cognitive function.
Cognition and arterial aging both may benefit from daily supplements of curcumin.
“Heading” a soccer ball may cause trauma to the brain that can cause memory loss.
A diet rich in omega-3 fatty acids may help to lessen neurodegeneration caused by eating junk food.
Stroke and subclinical markers of vascular disease may be predicative of those older patients with type 2 diabetes who may develop cognitive decline.
Viral and bacterial infections may lead to compromised cognitive skills.
Atrial fibrillation, the most common cardiac arrhythmia, associates with cognitive impairment and dementia, with or without a history of clinical stroke.
Men and women ages 65+ could boost their cognitive function by learning to use Facebook.
Tip #192 - Stay Connected
Researchers from the University of Chicago (Illinois, USA) report that social isolation may be detrimental to both mental and physical health. The team analyzed data from the National Social Life, Health, and Aging Project, a nationwide US study involving 3,000 men and women, ages 57 to 85 years. They arrived at three key findings regarding the relationships between health and different types of isolation:
• The researchers found that the most socially connected older adults are three times as likely to report very good or excellent health compared to those who are least connected, regardless of whether they feel isolated.
• The team found that older adults who feel least isolated are five times as likely to report very good or excellent health as those who feel most isolated, regardless of their actual level of social connectedness.
• They determined that social disconnectedness is not related to mental health unless it brings feelings of loneliness and isolation.
Separately, Rush University Medical Center (Illinois, USA) researchers studied 906 older men and women, testing their motor functions (including grip, pinch strength, balance, and walking) and surveying their social activity, for a period of 5 years. Those study participants with less social activity were found to have a more rapid rate of motor function decline. Specifically, the team found that every one-point decrease in social activity corresponded to an increase in functional aging of 5 years, translating to a 40% higher risk of death and 65% higher risk of disability.