HEALTHY LIVING Health Insider
LIFESTYLE MAY BEAT AGE IN DETERMINING DEMENTIA RISK People without any risk
factors for dementia, such as smoking, diabetes, and high blood pressure, have similar brain health as individuals who are 10 to 20 years younger, says a study published in Alzheimer’s & Dementia: Diagnosis, Assessment, and Disease Monitoring. The study also found that a single risk factor for dementia could
reduce cognition by up to three years of aging. “Our results suggest lifestyle factors may be more important than age in determining someone’s level of cognitive functioning,” said the study’s author, Annalise LaPlume, Ph.D. Researchers looked at eight modifiable risk factors: low education (less than a high school diploma), hearing loss, traumatic brain injury, alcohol or substance abuse, hypertension, smoking, diabetes, and depression. Each factor led to a decrease in cognitive performance by as much as three years of aging, and the eff ects of the risk factors increased with age. “All in all,” said LaPlume,
“our research shows you have the power to decrease your risk of cognitive decline and dementia.”
FECAL TRANSPLANTS REVERSE HALLMARKS OF AGING Animal research published in the journal Microbiome found that transplanting fecal microbiota from young mice into old mice reversed markers of aging in the gut, eyes, and brain. Our gut microbiota changes as we age, resulting in altered metabolism and immunity that are linked with age-related disorders including cardiovascular, autoimmune, metabolic, and neurodegenerative disorders, as well as inflammatory bowel diseases. The old mice that received young microbiota transplants showed increases in beneficial bacteria previously linked to good health. In a reverse experiment, fecal microbiota transplanted from old into young mice caused a weakening in the lining of the gut, allowing bacteria to cross into the circulation and trigger inflammation in the brain and eyes. “This ground-breaking study provides tantalizing
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Newsmax.com/Health/Newsletters 92 NEWSMAX MAXLIFE | NOVEMBER 2022
“ Our results suggest lifestyle factors may be more important than age in determining someone’s level of cognitive functioning.” — Annalise LaPlume, Ph.D.
AGING STATISTICS: 49
MILLION The number of Americans age 65 and older.
19 YEARS The number of
additional years a person age 65 can expect to live.
evidence for the direct involvement of gut microbes in aging and the functional decline of brain function and vision, and off ers a potential solution in the form of gut microbe replacement therapy,” said Simon Carding, Ph.D.
DAIRY LINKED TO PROSTATE CANCER Men who consume more dairy foods, especially milk, have a significantly higher risk of developing prostate cancer compared to men who ingested fewer dairy products, say researchers from Loma Linda University. Men who consumed about 430 grams (1 3/4 cups of milk) of dairy per day increased their risk by 25% when compared to men who consumed only about 20.2 grams (1/2 cup of
milk) a week. “Our findings add important weight to other evidence associating dairy products, rather than nondairy calcium, as a modifiable risk factor for prostate cancer,” said Gary Fraser, Ph.D. He said the association between dairy products and prostate cancer
80%
The percentage of older Americans with at least one chronic condition.
could be due to the hormones contained in dairy milk. “If you think you’re at a higher- than-average risk, consider the alternatives of soy, oat, cashew, and other nondairy milks,” he said.
UNIVERSAL FLU VACCINE Researchers from the Institute for Biomedical Sciences at Georgia State University developed a universal flu vaccine that off ered broad protection to diff erent strains and subtypes of influenza A in animal studies. In the past decade, vaccines for type A influenza have been only about 33% eff ective, which dropped to only 6% during the 2014-2015 flu season. Although flu viruses constantly mutate, when researchers linked two portions of the virus that have remained relatively unchanged over time (the extracellular domain of matrix 2 and the stalk protein found in influenza A H3N2 viruses), the vaccination induced broad protection. In addition, the vaccine stimulated protective T cell immunity.
JACOB LUND©ISTOCK
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