Brain & Aging
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Your First Pregnancy Rewires the Brain for One Baby. Your Second Rewires It for the Chaos of Two.
Amsterdam researchers scanned 110 women and found each pregnancy leaves its own mark, and the brain changes tied to maternal depression showed up months earlier the second time around.
Brain & AgingBerlin Physicists Bolted a Metamaterial to a 7-Tesla MRI, and the Living Eye Came Into Focus
It clips onto a 7-tesla scanner a hospital already owns, draws no extra power, and lifted the signal inside a living human eye by up to half.
Brain & AgingFor Thirty Years the Model Said Blue Cones Drift Out of Sharp Vision. They Were Turning Into Red and Green.
Johns Hopkins researchers grew human retinas in a dish and watched blue cones convert into the red and green cones behind sharp central vision. The three-decade-old migration model was wrong.
Brain & AgingYour Retina Starts Failing Before Any Scan Can See It. Now Someone Wants to Turn That Into a Panel.
Delayed dark adaptation flagged people who would develop early macular degeneration three years later. Now an optometrist has folded that finding into a 'retinal reserve' framework, bloodwork and all, that no trial has tested.
Brain & AgingA Brain Full of Plaques and a Mind That Held: The Cells That May Explain Alzheimer's Resilient Third
About a third of people whose brains show the full pathology of Alzheimer's never develop dementia. Dutch researchers say the difference may not be how many young neurons they have, but whether those cells switch on a survival program instead of dying.
Brain & AgingIn Mice, Early Stress-Drinking Corroded a Brain Region a Long Sobriety Couldn't Repair
In mice, pairing alcohol with stress in early adulthood damaged a tiny noradrenaline hub in the brainstem, and a prolonged stretch of abstinence didn't reverse it. The cognitive cost surfaced in middle age.
Brain & AgingLongevity Clinics Sell Growth Hormone by the Vial. In Deep Sleep, Your Brain Makes It Free.
The muscle-building, fat-burning hormone that anti-aging clinics inject at a premium is the same one your hypothalamus releases every night you reach deep sleep. Berkeley mapped how, in mice, and the headline is already running ahead of the biology.
Brain & AgingA Michigan Lab Grew a Living Skull Joint That Wouldn't Fuse. In Mice, It Held.
Craniosynostosis surgery reopens a fused infant skull; in some of the hardest cases it fuses right back and the child goes under the knife again. A triphasic scaffold kept the joint open in mice.
Brain & AgingThe Box-and-Banana Test Was Built for Apes. A Bumble Bee Worked It Out on Its Own.
Researchers in Finland trained bumble bees on two unrelated facts, a flower with sugar and a ball that rolls. With the flower moved out of reach, the bees combined the two into a solution nobody had shown them, on a task built for apes.
Brain & AgingFor Decades They Treated This Stroke Like a Clog. The Arteries Were Actually Too Wide.
People with widened brain arteries were four times more likely to have had a lacunar stroke, the type doctors have treated for decades as if it were a clog.
Brain & AgingAlzheimer's Hitches a Ride on a Virus Your Neurons Tamed for Memory
In mice and in human Alzheimer's brains, toxic tau rides a protein called Arc, a virus your neurons domesticated for memory, from sick cells into healthy ones. Delete Arc and the spread nearly stops.
Brain & AgingA Juice Company Built a Department Inside a Japanese University. Its Scientists Just Found Vitamin C Guards the Aging Brain.
Kagome, Japan's largest vegetable-juice maker, funded the work, employs two of its authors, and measured the vitamin itself. The gray-matter correlation it reported is real, and small enough to miss.
Brain & AgingSenescence Built Your Hands Before It Ever Aged Your Skin
Cellular senescence, the process blamed for aging and disease, is also how an embryo sculpts fingers and clears its own tissue. That double life scrambles the anti-aging industry's tidy 'kill the zombie cells' pitch.
Brain & AgingLead Strips Dopamine From the Exact Brain Circuit ADHD Drugs Are Built to Rescue
Childhood lead keeps landing on the same target: the striatal dopamine circuit that ADHD drugs are built to rescue. A Philadelphia cohort just tied it to real diagnoses, not test scores.
Brain & AgingGroup Mindfulness Beat Standard Back-Pain Care for a Full Year, No Prescription Required
Boston researchers taught 451 patients to work with their pain instead of medicating it, and the gains outlasted the program. The university's press release skipped the part where the edge over usual care fell short of the bar the team set for itself.
Brain & AgingA Federally Backed Trial Got High-Dose Fish Oil Into the Brain Fluid. The Memory Scores Never Moved.
DHA in the spinal fluid climbed 17 percent. Cognitive scores rose 2.76 points on fish oil, 2.67 on placebo. Two years of high-dose pills bought a rounding error.
Brain & AgingA Federal Court Put This Pesticide Back on Your Food. UCLA Just Showed It More Than Doubles Parkinson's Risk.
Chlorpyrifos was pulled from American homes in 2001 and ordered off food crops in 2021. A manufacturer sued, won, and it's back on apples and strawberries while the science against it gets stronger.
Brain & AgingYour Brain Has 170 Billion Cells and No Blueprint. Here's How One Cell Pulls It Off.
For fifty years the textbook said chemical gradients tell brain cells where to go. A new model says cells inherit their address from their family tree instead.
Brain & AgingThey Told Older Adults the Pill Was Fake. Their Memory Got Better Anyway.
A 90-person Italian trial gave older adults inert pills and told one group flat-out they were fake. That group improved as much as the deceived one. Here is what that does and doesn't prove.
Brain & AgingYour Brain Files Speech Where You'd Least Expect: In Hearing and Touch, Not the Motor Cortex
A TMS study from McGill and Yale finds that newly learned speech is stored in the brain's hearing and touch regions, not the motor cortex long assumed to run the show.
Brain & AgingThe Alzheimer's Field Spent Decades Trying to Destroy These Droplets. A Baylor Lab Says the Droplets Were Never the Problem.
A Baylor lab reports that tubulin redirects Tau and alpha-synuclein away from toxic clumping in the test tube. It is elegant mechanism work, and not yet a drug, an animal, or a person.
Brain & AgingThe Brain Was Starving Before the Plaques Showed Up: Alzheimer's Metabolic Reframe Has a Case, Not a Trial
A rising camp says failing mitochondria, not amyloid plaques, may drive Alzheimer's first. The biology is compelling and the amyloid monoculture earned its reckoning, but the metabolic side has its own retractions and not one human trial showing it works.
Brain & AgingUtah's Quiet Bet Against the Number-One Killer of New Mothers
Utah is scaling a free, CBT- and mindfulness-based perinatal depression pathway through MyChart in a state where suicide is the leading cause of maternal death.
Brain & AgingUltra-Processed Food Is Quietly Taxing Your Attention. The Mediterranean Salad Next to It Won't Pay the Bill.
A new Monash-led study finds ultra-processed foods track with worse attention and a higher dementia-risk score even after adjusting for Mediterranean diet quality. The biology of why is more interesting than the headlines admit.