[toc position='left'] Biological aging clocks are among the most important tools in modern longevity science. They attempt to answer a deceptively simple question: can we measure how fast a person is aging biologically, rather than just counting the number of years they have been alive? The answer is yes—but with important caveats. Epigenetic clocks use patterns of DNA methylation, a chemical tagging system on DNA, to estimate different aspects of aging. Some clocks estimate chronological age. Others predict disease risk, mortality risk, or the current pace of biological aging. This means biol... epigenetics aging telomeres genetics stem cells omega-3 dna damage biomarkers vitamin d senescence multivitamin
Read moreVitamin D plays a role in fetal brain development, but it remains unclear whether higher intake during pregnancy leads to measurable cognitive differences years later. A new study examined whether children's cognitive performance differed depending on their mothers' vitamin D dose during late pregnancy. The analysis used data from a Danish randomized trial in which 623 pregnant women had been assigned to different vitamin D doses. The researchers focused on 498 children whose mothers had received either the routine pregnancy dose recommended in Denmark of 400 IU of vitamin D3 per day or a hig... cognition pregnancy vitamin d
Read moreVitamin D is often discussed in relation to muscle health, but whether it changes the muscle's response to exercise and protein intake has remained largely unclear. In a new study, researchers tested whether vitamin D supplementation could amplify that response in healthy adults. The final analysis of the trial included 17 recreationally active adults who took either 3,000 IU of vitamin D3 per day or a placebo for 12 weeks. Before and after the supplementation period, participants came to the lab after an overnight fast, completed single-leg resistance exercise, and drank about 22 grams of wh... exercise muscle protein vitamin d
Read moreDr. Rhonda Patrick discusses a study that found vitamin D supplementation was associated with a 40% lower risk of dementia. ... vitamin d alzheimer's dementia supplements
Watch nowHigher DHA concentrations cut Alzheimer's disease risk by half. Docosahexaenoic acid (DHA) is an omega-3 fatty acid found in krill oil and the meat and roe of salmon, flying fish, and pollock. When consumed in the diet (or obtained from dietary supplements), DHA preferentially accumulates in the human brain (https://faseb.onlinelibrary.wiley.com/doi/full/10.1096/fj.201801412R), where it plays essential roles in normal brain function. Findings from a recent study suggest that higher concentrations of DHA in red blood cells protect against Alzheimer's disease. The concentration of omega-3 fatty... alzheimer's omega-3
Read moreOmega-3 fatty acids are essential for human health. They participate in pathways involved in the biosynthesis of hormones that regulate blood clotting, contraction and relaxation of artery walls, and inflammation. They have been shown to help prevent heart disease and stroke; may help control lupus, eczema, and rheumatoid arthritis; and may play protective roles in cancer and other conditions. Findings from a new study suggest that omega-3 fatty acids slow cognitive decline in Alzheimer's disease. Alzheimer’s disease is a neurodegenerative disorder characterized by progressive memory loss and... nutrition alzheimer's omega-3 neurodegeneration
Read moreAging impairs the body’s ability to fight infection due to chronic low-grade inflammation and a decrease in antibody-producing T cells. Consequently, 80 percent of deaths due to COVID-19 in the United States have been among adults 65 years of age and older. Researchers investigated the use of a ketogenic diet in mice as a strategy for treating COVID-19. A ketogenic diet is a high fat, low carbohydrate diet. Adherence to a ketogenic diet reduces blood glucose levels, which are associated with increased inflammation. Adopting a ketogenic diet may be an effective strategy for limiting excessive i... diet immune system ketogenic diet
Read moreDr. Roger Seheult discusses the roles of vaccines, vitamin D, and heat therapy in the prevention of COVID-19. ... covid-19 vitamin d inflammation virus vaccine
Watch now[toc position='left'] Background Collagens are major structural proteins in numerous body tissues, including tendons, ligaments, cartilage, skin, blood vessels, muscles, gut tissue, and dentin.[ref doi='10.1101/cshperspect.a004978'] They are the most abundant proteins in the body, comprising 30 percent of the total protein mass. The human body continuously manufactures collagens to maintain tissue structural integrity. However, aging drives a progressive decrease in protein synthesis and reduced capacity to produce new collagen.[ref doi='10.1016/S0047-6374(01)00337-2'] Collagens are also highl... interesting nutrition aging metabolism autoimmunity
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