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News & Articles By Douglas Harrington
09/21/2026
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By Douglas Harrington
Study Links Exercise, Liver Enzyme GPLD1 to Blood-Brain Barrier Repair
A study published in the journal Cell by researchers at the University of California, San Francisco, has identified a direct biological pathway linking exercise to brain health, according to the study. The research, conducted at the UCSF Bakar Aging Research Institute, found that physical activity prompts the liver to release an enzyme called GPLD1, which […]
08/13/2026
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By Douglas Harrington
Exercise May Help Aging Brain Clear Waste, Study Says
Exercise May Aid Brain Waste Clearance, Study Finds Regular exercise may help the aging brain clear metabolic waste, according to a review led by James Broatch, a researcher at Victoria University. The peer-reviewed paper, ‘Exercise as a regulator of glymphatic function,’ was published Aug. 10 in the journal Trends in Neurosciences. Researchers examined existing animal […]
08/10/2026
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By Douglas Harrington
Study: Exercise Prompts Liver Enzyme That May Protect Brain Barrier
Researchers at the UC San Francisco Bakar Aging Research Institute have found that exercise prompts the liver to release an enzyme that travels through the bloodstream to the brain and repairs the blood-brain barrier, according to a study published Aug. 7 in the journal Cell. The enzyme, called GPLD1, removes a protein called TNAP that […]
07/28/2026
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By Douglas Harrington
Study Links Grip Strength to Cognitive Decline Risk in Older Adults
A study of 4,656 adults aged 60 and older in Colombia found that low grip strength, not obesity, was associated with higher odds of cognitive impairment and probable dementia, according to research published in Frontiers in Nutrition. The study divided participants into four groups based on obesity status and grip strength measurements, officials said. Low […]
07/07/2026
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By Douglas Harrington
Study Links Light and Vigorous Exercise to Improved Sleep in Older Adults With Mild Cognitive Impairment
A study published in the journal Digital Health has found that both light and vigorous physical activity are associated with fewer sleep disruptions in older adults with mild cognitive impairment, with vigorous activity showing the strongest benefit, according to researchers from Texas A&M University. The study, which used wearable sensors to track movement and sleep […]
07/06/2026
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By Douglas Harrington
Study: Declining Physical Activity in Older Adults May Signal Cognitive Changes
A study published in JAMA Network Open has found an association between memory decline and reduced physical activity in adults aged 50 and older. The research, which followed 2,529 adults in England over 17 years, indicates that participants with greater memory decline spent about 14 fewer minutes per day in light physical activity and 12 […]
05/14/2026
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By Douglas Harrington
Study: Regular Exercise Linked to Higher Smoking Cessation Rates
A growing body of evidence indicates that regular physical activity may improve the likelihood of quitting smoking. According to a study published in the Oxford journal Nicotine & Tobacco Research, strength training significantly improved smoking cessation rates among smokers who had smoked for an average of 19 years, as reported by Mercola.com [1]. Another study from the […]
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