[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

[toc] Alcohol is one of the most heavily used and abused drugs. It's also a very controversial topic, in part because alcohol plays such a large role in societies and cultures around the world. For many, it's a normal part of daily life. There is also a lot of confusion about alcohol. There's no doubt that alcohol can have a personal and public health impact. On the other hand, research in the last few decades suggests that not only may a moderate intake of alcohol not be harmful, but it might also be protective against certain diseases. This idea is heavily debated, and conflicting evidence h... cancer cardiovascular alcohol brain alzheimer's diabetes breast cancer

[toc position='left'] Protein is one of nutrition's most essential and debated topics. It goes far beyond its reputation as the building block of muscle, playing a crucial role in metabolism, insulin sensitivity, and the prevention of diseases like type 2 diabetes and sarcopenia. But questions abound: How much protein is enough, and can too much, particularly from animal sources, be harmful? Protein intake, paired with resistance training, drives muscle repair and growth, enhancing athletic performance, improving metabolic health, and promoting longevity by protecting against age-related frai... protein nutrition muscle exercise aging strength

In this episode, we’re taking a deep dive into alcohol. We’ll explore the science, misconceptions, controversies, and health effects of this widely used drug. ... alcohol exercise brain alzheimer's cancer aging microbiome sleep heart disease

[toc position='left'] Introduction Vitamin D is a fat-soluble vitamin that is stored in the liver and fatty tissues of the body. Perhaps best known for its role in maintaining calcium balance and bone health, vitamin D is critical in many physiological processes, such as blood pressure regulation, immune function, and cell growth. Poor vitamin D status is implicated in the pathogenesis of many acute and chronic diseases, including rickets, osteoporosis, multiple sclerosis, and cancer. Vitamin D is a controversial topic in the scientific community and has contributed to much debate regarding t... gut blood pressure vitamin d aging vitamin k calcium

[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

[toc position='left'] Background Vitamin C, also known as ascorbic acid, is an essential nutrient, widely recognized for its antioxidant properties. These properties arise from its potent redox potential due to its capacity to donate electrons to oxidized molecules. Even in small quantities vitamin C can protect critical molecules in the body such as proteins, lipids, carbohydrates, and nucleic acids (DNA and RNA) from damage by reactive oxygen species, which are generated during normal metabolism, by active immune cells, and through exposure to toxins and pollutants (e.g., certain chemotherap... cancer nutrition exercise interesting

[toc position='left'] > Epigenetic clocks are a subset of the broader subject of biological aging clocks, which you can read a full write-up on here (/topics/biological-age-clocks). Epigenetic clocks are predictors of biological age based on alterations in an individual's DNA methylation profile. Methylations – biochemical processes that modify the activity of a DNA segment without changing its sequence – occur naturally and regulate gene expression to control normal growth and development. With age, the methylation state of various genes may change. These changes are quantifiable and gauge... aging interesting epigenetics dna damage

[toc position='left'] Nutrition in the first year of life is crucial to an infant's development and lifelong health. Early nutritional deficits are intrinsically linked to impaired mental and physical growth. Consequently, the risk of developing metabolic and cardiovascular diseases such as obesity, diabetes, and hypertension in childhood and later life is likely determined by early feeding and nutritional status. Breastfeeding is the biologically superior way to feed an infant. The American Academy of Pediatrics recommends exclusive breastfeeding for the first six months of an infant's life ... cancer breast cancer circadian rhythm nutrition brain microbiome heart disease diabetes inflammation alcohol stem cells immune system development intelligence

[toc position='left'] Salmon roe – sometimes referred to as "salmon caviar" – is the internal egg mass found in female salmon. It is served in a variety of dishes, including sushi and pasta, or as a garnish or condiment to seafood or eggs. Salmon roe is rich in protein, vitamins, astaxanthin, and the omega-3 fatty acids eicosapentaenoic acid, or EPA, and docosahexaenoic acid, or DHA. Omega-3 fatty acids are long-chain polyunsaturated fatty acids. They are considered essential fatty acids because the human body cannot make them. Alpha-linolenic acid, or ALA, an omega-3 fatty acid that serves a... brain aging omega-3 diet mental health dementia alzheimer's