All articles tagged with #skin
New findings show daily grape consumption (three servings) for two weeks alters skin gene expression and lowers UV-induced oxidative stress, suggesting grapes act as a nutrigenomic 'superfood' that could bolster the skin’s protective barrier and potentially affect other tissues.
A health-focused piece warns that beach outings can carry six common rashes and infections from ocean water or sand, caused by bacteria, fungi, parasites, or fecal contamination; it recommends practical prevention steps such as rinsing off after swimming, wearing sandals on sand, avoiding barefoot exposure in polluted areas, covering wounds, showering after beach time, washing hands, and heeding local beach advisories to minimize risk.
A large synthesis of 113 clinical trials and 16 systematic reviews (nearly 8,000 participants) finds collagen supplements offer modest but real benefits: improvements in muscle health and osteoarthritis pain, plus better skin hydration and elasticity with consistent, longer-term use. However, results vary by product type, dose, and study quality, and many trials are short or poorly designed, leaving long-term effects and who benefits most still unclear; more standardized research is needed.
Researchers generated an organ-wide, MERFISH-based single-cell spatial atlas of about 1.2 million cells from normal adult human skin, spanning 15 body sites and 22 donors, resolving 45 cell types and 10 multicellular neighborhoods. They highlight a perivascular neighborhood reminiscent of skin-associated lymphoid tissue (SALT) where TNF coordinates immune–fibroblast crosstalk, with CCL19+ fibroblasts proximal to vessels playing a central role. By integrating MERFISH with scRNA-seq and Visium data, they map site-specific cellular compositions, neighborhood dynamics, and ligand–receptor signaling, and show pan-disease immune alterations in the perivascular niche across skin conditions. An interactive web tool is provided to explore these data, underscoring spatial organization as a key driver of skin biology and disease.
A large review of 113 trials (about 8,000 participants) finds collagen can modestly improve skin hydration and elasticity and reduce osteoarthritis joint pain with consistent, long-term use, plus small gains in lean mass. It does not enhance post-exercise recovery or tendon properties, and effects on blood pressure, cholesterol, blood sugar, or oral health are inconclusive. Collagen is not a miracle cure and should be used with realistic expectations and medical guidance.
A real aging odor is produced by 2-nonenal, a fatty aldehyde whose production increases with age as skin antioxidant defenses decline, sebum changes, and environmental stress accumulate; the scent typically appears after age 40 and is more noticeable in the 50s, though it varies by genetics, skin type, and lifestyle. It clings to skin and fabrics and isn’t easily washed away, and while some people may not notice it themselves due to olfactory adaptation, there’s no proven cure. Experts suggest skincare with antioxidants and practices that reduce aldehyde persistence (like certain tannin-containing cleansers) and careful laundering to minimize the odor, framing aging as a natural change rather than a hygiene problem.
A review of 113 trials with about 8,000 participants finds daily collagen can improve skin elasticity and hydration over time but does not prevent wrinkles; it may also ease joint pain, though it is not a cure-all. Benefits come with consistent use and vary by supplement type (marine, bovine, vegan) with no clear winner. Diets rich in vitamin C and zinc support collagen production, and more dermatology-focused studies are needed to confirm these effects.
Scientists describe Haolong dongi, a juvenile iguanodontian from northeastern China, with hollow, porcupine-like spikes along its neck, back, and sides. The 2.45 m skeleton is exceptionally well-preserved, but the spikes’ purpose remains unclear—defense, display, or sensing—while pigment was not detected and they are not protofeathers. The discovery broadens our view of dinosaur skin and was published in Nature Ecology & Evolution (2026).
Rockefeller University researchers found that when serine levels drop, the integrated stress response activates and hair follicle stem cells reduce hair production to prioritize skin repair, speeding wound healing; boosting serine has limited effect due to the body's tight control over its circulation, though restoring serine in cells lacking it can partly rescue hair growth—pointing to diet or drug strategies to modulate serine/ISR for faster healing.
A study by NYU School of Medicine found that aging skin experiences a decline in capillary-associated macrophages, which impairs microvascular repair. Boosting these macrophages with growth factors in mice improved blood flow and capillary repair, suggesting potential avenues for reversing skin aging, though human applications remain untested.
Frogs breathe and drink through their porous, moist skin, which contains blood vessels for gas exchange and water absorption, allowing them to survive underwater and during hibernation, though this makes them vulnerable to pollutants and climate change.
The article discusses proven methods to boost collagen production in the skin, as recommended by dermatologists, though specific techniques are not detailed in the provided excerpt.
The article reviews the best collagen peptide supplements, highlighting their benefits for skin, hair, nails, joints, and bones, and provides expert insights on choosing effective products to support healthy aging and tissue repair.
The skin, being the largest and most visible organ, can offer insight into our overall health. Various rashes and skin changes can indicate underlying illnesses such as Lyme disease, blood vessel issues, metabolic disorders, and heart conditions. Recognizing these skin signs and seeking medical attention when necessary can help in early diagnosis and treatment of potentially serious health issues.
Paleontologists have discovered a 290 million-year-old skin fossil in an Oklahoma cave, making it the earliest known example of a fossil from an amniote. The fossil is believed to have come from a reptile with a rough skin surface similar to that of a crocodilian animal. The discovery is significant for understanding the evolutionary history of animals, as skin fossils are rare due to their fragility. The cave's unique conditions, including soft sediment and a lack of oxygen, contributed to the preservation of the skin fossil. Although no nearby skeleton was found, the discovery provides valuable insights into prehistoric life.