Single‑cell Methylation Reveals Age
Epigenetic aging happens at different rates in individual cells within the same tissue. Using single-cell DNA methylation analysis, Hagit Masika, Tommy Kaplan, Howard Cedar, and colleagues show polycomb CpG island methylation creates 'young' vs 'old' cell subpopulations even at fixed chronological age. Fascinating finding: white vs black hairs from the same 53-year-old person show dramatically different epigenetic ages. This single-cell view of aging could explain why age-related diseases often start from individual cells (like cancer). Title: Cell-to-cell variability and gain of methylation at polycomb CpG islands as a hallmark of aging. Link: https://t.co/DXXhRhYAXd
Red Meat in Plant-Forward Diet Impacts Aging Biomarkers
Effects of Minimally Processed Red Meat within a Plant-Forward Diet on Biomarkers of Physical and Cognitive Aging: A Randomized Controlled Crossover Feeding Trial https://t.co/hpjHcUsbtP https://t.co/Kf2yZhbmVe
Aging Driven by DNA Instability and Mitochondrial Decline
So great to see the OG work that helped spark the longevity revolution taken to the next level: New paper confirms two main causes of aging: 1. DNA instability -> epigenetic noise 2. Mitochondrial decline ...independently causing failure of the cell Is this relevant to...
Judith Curry Led Trump‑appointed Group to Undermine EPA Science
#JudithCurry was a key member of the "unlawful" working group tasked by the Trump administration with discrediting the science underlying the EPA endangerment finding (the legal basis for regulating carbon emissions).
Nicotinamide Study on Amyloid Beta Retracted Over Editing Concerns
FYI - Retracted paper in the NAD field: Nicotinamide Ameliorates Amyloid Beta-Induced Neurodegeneration in Adult Mouse Brain. The editors lost confidence in the findings after "indications" of inappropriate editing & partial duplication https://t.co/WVJBCeKjQ4 https://t.co/lmUObhFxcK
Graph AI Accelerates Longevity Drug Discovery in New Alliance
Solve Aging: Biophytis and LynxKite are expanding their alliance to use graph-based AI to speed discovery of new longevity drugs, aiming to map complex aging biology and surface novel targets for age-related disease. The “AI x longevity” stack is quietly...
Genetics Shapes Smoking Habits, Recovery, and Free Will Beliefs
“Everything is related to your genetics, both your smoking and your quitting smoking, both your addiction and your recovery. Even your belief in free will is heritable and is more similar in identical twins.” — @kph3k 🔗 https://t.co/BxddkybDz0 https://t.co/LxTwp2vXIX
GLP‑1 Drugs: Promising yet Unproven Healthspan Extension
GLP-1 drugs for extending healthspan? Intriguing but we're a long way off from evidence Discussed at length in Super Agers as a candidate drug beyond lifestyle + factors @TheEconomist gift link https://t.co/A2dpfcnApF https://t.co/3gY8iACeGs
EPA Outperforms DHA in Sleep‑deprivation Cognitive Decline
Dietary EPA shows superior efficacy over DHA in chronic sleep deprivation-induced cognitive decline by disrupting the crosstalk between intestinal ferroptosis and gut-derived Aβ production 🧠👨🏻⚕️ 🔗https://t.co/rqUO058bO9 https://t.co/Kr137l2BvH
Breast Milk Shifts Daily: Match AM/PM Feedings
Breast milk has a clock. Morning milk has higher cortisol and stimulating amino acids to help the baby wake up. Evening milk has more melatonin and nucleotides that have a sleep inducing effect on the nervous system to help the baby...
Exercise Boosts BDNF, Enhancing Brain Plasticity
Exercise increases brain-derived neurotrophic factor, supporting brain plasticity. Trends in Neurosciences, 2002. Cotman and Berchtold https://t.co/jux3TwN0fS
High FSH, Not Low Estrogen, Drives Cognitive Decline
Follicle-stimulating hormone linked to cognitive decline and amyloid burden in postmenopausal women 👉"Elevated FSH, not low E2, is linked to cognitive decline and Aβ pathology in postmenopausal women." https://t.co/EkFxbjsao9
Immigrants Powered Moon Landing and Modern Chip Revolution
"We were doing just fine without immigrants" is a commonly repeated trope. Just to to take the examples listed and the immigrants who made essential contributions... Landing on the moon: Wernher von Braun (Germany) → Chief architect of the Saturn V rocket, the...
Seabird Guano Boosts Plant Growth, Stabilizes Coastal Dunes
Seabird guano accelerates plant growth on barrier islands, enhancing dune formation and aiding recovery from coastal erosion, highlighting the ecological role of birds in shaping and stabilizing vulnerable coastal landscapes. coastalecology
The Placenta: A Temporary Powerhouse Organ We Overlook
The placenta is honestly the most remarkable organ. A woman's body grows it from scratch in a matter of weeks. By week 12, it's the size of a dinner plate and fully functional. It produces its own hormones like progesterone, estrogen,...
Explore Human Organs in 3D Down to Single Cells
This stunning 3D map lets anyone explore real human organs down to a single cell | BBC Science Focus Magazine https://t.co/32o3aJrrZB
Human CO2 Emissions 120× Volcano Output, Not Myth
This "factoid" seems to be all over X this week. However, even the most cursory of internet searches (or LLM queries) would show its complete fiction. In reality, human activity emits approximately 120x more CO2 than all the world's volcanoes combined....
Dynamic Evaluation Framework for LLMs in Patient Care
Our new @NatureMedicine paper proposing a path for better, dynamic evaluation of large language models for patient care https://t.co/VHvyxDFKuc CES-clinical environment simulator @pranavrajpurkar https://t.co/Q9tyeupEk3
Chemical Tools Uncover Active Microbes in Complex Ecosystems
🔎 Chemical biology tools reveal which microbes are truly working behind the scenes 🔗 https://t.co/oFvPY4Uz95 🌐 #INPST #Biotech #CRBIOTECH https://t.co/tGA5P30yM1
Psilocybin Aids Smoking Cessation; New African Psychedelic Mushroom Found
Psilocybin seems to help tobacco smokers quit; Scientists discover a new species of psychedelic mushroom in Africa https://t.co/E5d2aUHoUQ
Deconstructing Psychedelics to Engineer Non‑Hallucinogenic Therapies
How do you break psychedelic molecules into parts, like cars in a chop shop, and build new ones? A look into non-psychedelic psychedelic medicine by Clayton Dalton, an ER doc and Ferriss-UC Berkeley Psychedelic Journalism Fellow @ucbsoj & @SciPsychedelics https://t.co/b7R4aTNdyf
Never Trust Bulk RNA‑seq without These 7 QC Checks
1/9 Every bulk RNA-seq experiment I run goes through the same 7 checks before I trust the results. I've been burned enough times to know: if you skip QC, you will find out the hard way. Usually during a meeting with...
Glyphosate Linked to Lower Bone Density and Fractures
Glyphosate exposure, bone mineral density, osteoporosis, and fractures in the United States population 👉"Results are internally consistent and align with existing literature concerning toxicity of glyphosate on bone and extend it to include adverse impact on osteoporosis and fractures." https://t.co/5kJOV4KD1X
Neuromorphic Chips Simulate Physics with 1,000× Less Energy
Recent neuromorphic computer breakthroughs mean we can now simulate complex physics on brain-inspired chips using 1,000x less energy than supercomputers. We're literally making silicon think like neurons to solve equations that used to require entire data centers. The Cambrian explosion...
March Hits 113°F, Shattering Record by 10°
Monthly heat records being shattered by an unheard of 10 degrees beyond previous record —> 113F. In March.
Single Rapamycin Dose Boosts Brain Glucose, Cuts Synaptic Density
Single-dose rapamycin increases brain glucose metabolism but reduces synaptic density in Long-Evans rats [One week after intraperitoneal administration of rapamycin (8 mg/kg) 👨⚕️] https://t.co/6JhcZYS01h https://t.co/wruacgIvFM
75‑Year‑Old
An intriguing case of “exceptional resilience” against dementia A 75-year-old man free of dementia despite a dominant Alzheimer’s mutation — and a possible hint for the rest of us https://t.co/lWn9gCKrEm https://t.co/jq0L2NtZ27
Engineering Smarter, Healthier Babies Through Embryo Selection
The man engineering smarter, healthier babies before they're born: Jonathan Anomaly. This philosopher-turned-biotech founder says the future of your child's health starts at the embryo. Here are 9 things you need to know about embryo selection: https://t.co/XVQF5le4bE
Insulin-Like Peptide Trades Combat for Survival in Beetles
Insulin-like peptide has antagonistic pleiotropic effects on male combat traits and survival traits in an armed beetle https://t.co/7Re0I2vcDW
Invasive BCI Advances Faster than Expected, Needs Major Backers
Pretty big news in the BCI world today. Before Insilico, I was in BCI. I did not expect invasive interfaces to progress so quickly. The future will be amazing and I hope that Elon and Google put some serious muscle...
Weekly Aerobic Exercise Reverses Brain Aging by One Year
I teach medical students about neurodegeneration. But a new clinical trial shows the most powerful brain drug might be free. Researchers at AdventHealth put 130 adults (ages 26-58) through a randomized controlled trial: 150 minutes of aerobic exercise per week vs....
More Exercise Variety Cuts All‑Cause Mortality by 19%
Physical activity types, variety, and mortality: results from two prospective cohort studies "Higher physical activity variety was associated with lower mortality. After adjustment for total physical activity levels, participants in the group with the highest physical activity variety score (group 5),...
Brain Scan Unveils Secrets Behind Leonardo’s Polymath Genius
Leonardo's Brain – a posthumous "brian scan" exploring the secret to his polymathic creativity https://t.co/CV2EyvESBH
Minimally Invasive Clearing Media Enables Deep Live Brain Imaging
Isotonic and minimally invasive optical clearing media for live cell imaging ex vivo and in vivo "Here we develop minimally invasive optical clearing media for fluorescence imaging of live mammalian tissues.... SeeDB-Live minimally affects neuronal electrophysiological properties and sensory responses in...
Exercise Volume Overestimated; Intensity and Consistency Matter
We massively overestimate how much exercise is needed. Study after study show the benefits for cardio fitness, longevity, and strength come from: 1. Intensity (at very low volume). 2. Consistency. Volume basically doesn't matter beyond a low amount, except for getting...
Fasting Parents Alter Offspring Immunity and Microbiome
Parental fasting effects on offspring immune gene expression, epigenetic patterns, and gut microbiota in a species with male pregnancy (Syngnathus typhle) https://t.co/5x9ScJ30uY https://t.co/hixjrq8Bvg
Coyne: Evolution Undermines Need for God
Jerry Coyne comments on Pinker vs. Douthat debate: Do we need God? – Why Evolution Is True https://t.co/adSZcA8oC4
Genomics and AI Redefine Species and Evolution
I suspect this will transform our understanding of how species have evolved. Species definitions have always been flawed as they were developed pre-genome sequencing and pre-AI
Higher Intelligence Predicts Lower Authoritarianism, Greater Social Liberalism
Does being smart make you less authoritarian and more socially liberal? James Lee (former student), Emily Willoughby, & colleagues present evidence (including ruling out confounds) which suggests the answer is yes. | Predicting political beliefs with polygenic scores for...
Nitric Oxide Drives Age‑Related Disease Mechanisms
Nitric Oxide Signaling and Sensing in Age-Related Diseases "Nitric oxide (NO) is a key signaling molecule involved in numerous physiological and pathological processes within the human body. This review specifically examines the involvement of NO in age-related diseases, focusing on the...
Classical Heuristics Advance Guides Future Quantum Chemistry
In this thoughtful essay, Garnet Chan reflects on recent progress using classical heuristics in computational quantum chemistry—and what it means for quantum computing. The lessons he draws can help to steer both classical and quantum approaches in scientifically productive directions. https://t.co/XSXMNQTy3b
West Faces First Real Test of Water Scarcity
This is going to be the first year where we get a real look at how the west deals with water scarcity. We’ve had droughts in the past, but this is a glimpse into the future.
Delays, Not Denial, Drive Climate Collapse
Climate change rarely collapses in denial. It unravels in delay. Small postponements compound until the system moves from control to consequence. https://t.co/1l2OM4plnJ
Aging Mouse Brains Show Gradual Cellular Identity Drift
New study of mouse brain aging identifies a progressive drift in cellular identity, consistent with information theory (ITOA) https://t.co/OaB2p9GUgT
Fewer Cagemates Increase Female Mice Mortality
Association between cagemate number and risk of death in mice: a time-varying covariate analysis using Cox frailty models "...Female mice exhibited a pronounced increase in mortality rate as cage density declined..." https://t.co/pGtDArEzI0 https://t.co/5gizWZ0QYo
Micro-Cages Enable Precise Manipulation of Cell Clusters
These micro-cages are designed to hold and manipulate tiny cell clusters in miniaturized lab-on-a-chip devices. https://spectrum.ieee.org/lab-on-a-chip-grippers?share_id=9241061
First Human Age‑Reversal Trial Targets Whole‑Body Reset
The first human age-reversal trial is officially happening. But before the FDA cleared it, Harvard professor David Sinclair had to pull off a mice experiment most scientists thought was impossible: "These mice had their optic nerve regenerated. We were able to...
Chinese Ceramic Endures 3272°F, Transforming Space Heat Shields
#WhatsNext? Scientists in China created ceramics that survive 3272°F, 1800°C! Could revolutionize how heat shields are used by spacecraft. (Engineering Post) #NewMaterials https://t.co/Wr6wLsUfxe
FoxO3a Boost in Dentate Gyrus Eases Stress‑induced Depression
Overexpression of FoxO3a in the dentate gyrus alleviates CUS-induced anxiety- and depression-like behaviors and cognitive impairment https://t.co/p2t18NRkew
Cut dAGEs, Boost Longevity with Smart Nutrition
Dietary Advanced Glycation End Products (dAGEs): Pathogenesis and nutritional strategies for health longevity-A critical view https://t.co/RrTxgGg4UF https://t.co/ujoKGLKIRz