Dr. Howard Smith Reports

Vidcast: https://www.instagram.com/p/DZ16HR9ymr-/Millions of Americans take glucosamine daily for the joint pain of arthritis. New research from University of Florida raises questions about its safety. Published in the journal Nature Metabolism, regular consumption of glucosamines is associated with faster progression of Alzheimer’s disease.The researchers analyzed health records from thousands of patients using artificial intelligence. After accounting for factors such as age, sex, and demographics, they find that glucosamine users with mild cognitive impairment have a 25 percent higher likelihood of progressing to dementia compared with non-users. The study finds only an association and does not prove that glucosamine causes these outcomes.To understand what could be happening, the scientists examined brain tissue and conducted experiments in mouse models of Alzheimer’s disease. They discovered that glucosamine appears to increase a biological process that adds sugar molecules to proteins. This sugar-tagging system is already overactive in Alzheimer’s brains, and accelerating it may contribute to disease progression with memory decline. When researchers reduce the activity of this pathway, memory performance improves. Similar abnormalities are also found in human Alzheimer’s brain tissue.The investigators emphasize that people should not panic or stop medications based solely because of this study. Clinical trials will be needed to determine whether glucosamine truly contributes to Alzheimer’s progression or whether other factors are involved.Still, the findings highlight how supplements that seem harmless may have unexpected effects in people with certain medical conditions. If you or a loved one takes glucosamine and has memory issues, this study may be worth discussing with a healthcare professional.The references for this report are available on my website.#Alzheimers #BrainHealth #Glucosamine #DementiaResearch #HealthNews

Vidcast: https://www.instagram.com/p/DZ14xIxpKpJ/That neurotransmitter is acetylcholine according to new research from Japan’s Okinawa Institute of Science and Technology. It is involved in learning, memory, and decision-making, and it helps us abandon old habits and adapt when things don’t go as expected. In a their study published in Nature Communications, researchers trained mice to navigate a virtual maze where they learned which path led to a reward. Once the mice became comfortable with the routine, scientists suddenly changed the rules and removed the expected reward. When mice experience this disappointment, researchers observe a surge of acetylcholine in key brain regions.This spike appears to trigger behavioral flexibility. Mice with larger increases in acetylcholine are more likely to stop repeating an old strategy and try a new one. In other words, disappointment seems to activate a brain signal that encourages change instead of repetition.To test the idea further, researchers reduced the mice’s ability to produce acetylcholine. The result was striking. The animals become less flexible and are more likely to stick with outdated choices even when those strategies no longer work.This discovery helps explain why some conditions make it difficult to break habits. Disorders such as addiction, obsessive-compulsive disorder, and Parkinson’s disease are often characterized by behavioral inflexibility. Understanding how acetylcholine helps the brain adapt could eventually lead to new treatment approaches for these disorders.The next time something doesn’t go your way, know that your brain may already be using that disappointment as a signal to explore a better path.The references for this report are available on my website.#BrainHealth #Neuroscience #Acetylcholine #MentalHealth #ScienceNews

Vidcast: https://www.instagram.com/p/DZ13S0eOGtH/Some of the fats we eat nourish cancer while others help our immune systems kill it. Oncologists at the Yale School of Medicine report in the American Association For Cancer Research journal that, for pancreatic cancer in a mouse model, the fat in olive oil accelerates cancer growth while fish oils slow that growth.Mice fed diets rich in oleic acid develop pancreatic tumors faster than mice on other diets. This was unexpected because oleic acid has long been considered heart-healthy and is commonly found in olive oil, peanuts, lard, and certain sunflower and safflower oils.On the other hand, omega-3 fats found in fish oil had the opposite effect. Mice fed fish-oil-enriched diets experience about a 50 percent reduction in disease compared with mice eating a standard-fat diet. The researchers find that omega-3 fats make cancer cells more vulnerable to a natural self-destruct process called ferroptosis. Monounsaturated fats like oleic acid appeared to protect cancer cells from that process.The team also finds that higher ratios of monounsaturated fats to polyunsaturated fats are linked to greater pancreatic cancer burden, while lower ratios are associated with less cancer development. A side note: the tumor-promoting effects of oleic acid are much stronger in male mice than in female mice.This study was conducted in mice, not humans, and more research is needed before any dietary recommendations can be made. However, the findings may eventually help people at higher risk for pancreatic cancer understand how specific dietary fats influence disease development and progression.The references for this report are available on my website.#PancreaticCancer #CancerResearch #YaleMedicine #Omega3 #HealthNews

Vidcast: https://www.instagram.com/p/DZ12A89B8Oj/Occidental College and the University of California, Irvine ophthalmologists are developing a futuristic alternative to LASIK that promises to correct your blurry vision without cutting, burning, or removing any eye tissue.This novel process called electromechanical reshaping or EMR uses tiny electrical pulses and a special 3D printed contact mold to reshape eye tissues. By sending a very low electrical current through the custom platinum contact lens on the cornea, its molecular bonds loosen enough to permit a strategic tissue reshaping. Once the current is turned off, the cornea stiffens again and locks into the new form that better focuses images on the retina.This technique successfully corrects the nearsightedness of rabbits eyes in about one minute. The rabbits’ corneal cells remain alive and healthy. Additional animal studies are currently underway to test the procedure for correction of farsightedness, astigmatism, and corneal clouding due to chemical damage. Much research lies ahead before it can undergo clinical trials.Though the LASIK procedure has helped millions of people, it does permanently remove some corneal tissue and has sometimes leads to dry eyes, glare, halos, or other complications. This new approach might potentially preserve more of the eye’s natural strength while reducing cost and invasiveness.The references for this report are available on my website.#VisionCorrection #LASIK #EyeHealth #MedicalInnovation #FutureMedicine

Vidcast: https://www.instagram.com/p/DZ10vrZOclh/Gently heating the back of the eye, the retina, by just a few degrees using near-infrared laser light can prevent the devastating loss of vision as the result of dry macular degeneration. This the finding by Finnish and Swedish neuroscientists in pig and mouse studies published in the journal Nature Communications.This mild heat activates the eye’s natural repair and cleanup systems in the retinal pigment epithelial layer. It boosts protective heat shock proteins and triggers the processes cells use to remove damaged proteins and waste.Dry age-related macular degeneration affects millions of older adults and is one of the leading causes of blindness. About one-third of people over age 80 develop macular degeneration. The disease is marked by the buildup of fatty protein deposits called drusen, which can damage the retina and gradually destroy central vision.Instead of waiting until vision is lost, the researchers hope that this treatment proactively strengthens vulnerable retinal cells during the early stages of the disease by helping them repair damage and remove toxic waste material. Phase one human clinical trials are now beginning in Finland that focus on safety before testing whether the treatment can slow or stop disease progression.The references for this report are available on my website.#MacularDegeneration #EyeHealth #VisionLoss #HealthyAging #MedicalResearch

Vidcast: https://www.instagram.com/p/DZ1zfXYsAn2/Two sprays of a nasal spray developed by Texas A&M University neuroscientists reverses some signs of brain aging. And the effect lasts for months. Their studies appear in the Journal of Extracellular Vesicles.The nasal spray contains biological particles called extracellular vesicles which transport microRNAs. In mouse studies, this treatment reduces chronic brain inflammation, restores the mitochondrial energy sources inside brain cells, and improves memory and recognition abilities. The therapy appears to reactivate the brain’s natural repair systems and helps neurons recover their ability to process and store information.This brain inflammation and declining cellular energy are linked to memory loss, brain fog, dementia, and Alzheimer’s disease. If future human studies confirm these findings, a simple nasal spray could someday become a noninvasive way to help maintain cognitive health as people age.On the other hand, this therapy has not yet been tested in humans. When it is, controlled clinical studies are needed before it could become approved and acceptable therapy. The references for this report are available on my website.#BrainHealth #HealthyAging #Neuroscience #DementiaResearch #Memory

Vidcast: https://www.instagram.com/p/DZdHm-sp_i8/These dressers are unstable if not anchored to a wall creating tip-over and entrapment hazards that can result in serious injury or death to children. Affected: lot # HCV202601 with a production date 01/2026.About 165,000 were sold at Walmart stores nationwide and online at Walmart.com from September 2023 through March 2026.Stop filling and using these recalled dressers if they are not anchored to the wall and place them in an area that children cannot access. Contact Walmart at 1-800-925-6278 to receive a full refund. You will be asked to return your dresser drawers to any Walmart store.References on my website.#RecallAlert #ChildSafety #ProductRecall #ConsumerSafety #ParentAlert

Vidcast: https://www.instagram.com/p/DZdFZWDh3uO/The fiberglass poles supporting these play tent shed fibers posing a risk of skin and eye irritation. About 7,500 play tents were sold online at Amazon.com and Tinylandus.com from November 2025 through March 2026.Stop using these recalled play tents, disassemble the tents, and place the poles in an area where children cannot access them. Contact Tiny Land at 1-833-556-5252 or by email at customer_care@tinylandus.com to receive a free repair kit that includes a set of four plastic replacement poles and shipping. Then dispose of the tent’s fiberglass poles, using gloves, in accordance with your state and local waste disposal procedures.References on my website.#RecallAlert #ChildSafety #ParentAlert #ProductRecall #SafetyNews