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Every signal we have published, kept. Search it by what you remember — a word from the headline, a subject, a study, a place.

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From The Archive

Three worth going back for
🦠 Gut Health

A 10,000 Person Study Just Mapped Which Foods Feed Which Gut Bacteria

The single most useful thing in the archive if you actually want to change your gut bacteria: 10,000 people, mapped food by food.
🧬 Peptides

First Randomized Trial Finds Semaglutide Slows Biological Aging

The first randomised evidence that a drug people are already taking for weight does something measurable to biological ageing.
🌫️ Air Purifiers

Wildfire Smoke Season Is Already Twice As Bad as Normal in 2026

Written mid-season and still the practical one: what actually filters smoke, and what is being sold to you.
Ten Different Healthy Diets All Tracked With Slower Biological Aging, and No Single One Won An Orange Juice Study Found No Heart Benefit. Its Press Release Suggested One. 87 Trials Finally Put a Number on How Much Whole Grain Your Heart Needs Your Baby's Gut Bacteria Come From Your Gut, Not the Birth Canal Semaglutide Added 100 Days to Old Mice, Then Beat Eating Less At Its Own Game The Compound in Spinach and Almonds That IBD Guts Cannot Clear A Bill in Congress Could Put an Expiry Date on the Rule That Killed NMN and NAC The First Review of Carotenoids and Sleep Says Eat the Food, Skip the Capsule Scientists Found the Brain's Own Sleep Switch, and It Is in the Part You Think With If You Have ADHD, Your Gut Trouble Might Not Be a Coincidence Your Neighborhood's Heat and Air Pollution Tracked With Frailty, PTSD and Depression The First Bemotrizinol Sunscreen You Can Actually Buy in America Is Here Creatine Doesn't Hurt Your Kidneys. It Does Change Your Blood Test. A Regulator Just Cleared a Gut Bacterium Whose Only Job Is Making Butyrate India Just Banned the Words "Energy Drink" Probiotic Use Jumped 287 Percent. Fiber Intake Went the Other Way. A Regulator Finally Put Numbers on NMN: 500 Milligrams, 12 Weeks, Oral Only Sorbitol Is One Chemical Step From Fructose, and Your Gut Bacteria Stand in the Way Most Gaming Supplements Are Just Caffeine, and Nobody Can Tell You the Right Dose A New Nature Study Says Your Probiotic Label Might Be Less Specific Than You Think The GLP1 Suicide Scare Didn't Survive 4.9 Million Patients Europe's Cardiology Society Now Says Every Heart Disease Patient Should Get Two Kidney Tests A Longer Exhale Lit Up the Brain's Reward Circuits, and People Started Taking Bigger Risks Your Immune Cells Remember Being Overweight, Even Years After You Lose the Weight A 355 Person Trial Tested Vitamin D and DHA Alone, Then Together, and Together Won A 93 Person Trial Raised Insulin Sensitivity 28%, and Nobody Can Say Which Ingredient Did the Work Stanford Found an Aging Switch in Mice, and the Aspirin Takeaway Everyone Will Draw Is Wrong 91,292 People and 12 Years of Tracking Found the Real Problem With Sitting Is Never Getting Up Ten Years of Bone Scans on 10,000 Women Found the Line Where Coffee Stops Being Neutral Fish Oil and Low Dose Aspirin Just Matched the Antibiotics Doctors Use for Severe Gum Disease The Same Blood Molecules That Predict How Long Your Dog Lives Also Predict How Long You Do The FDA Just Cleared the First Wearable That Tracks Ketones Around the Clock, and It Was Not Built for Keto Dieters The FDA Just Proposed Closing the Loophole That Lets Companies Approve Their Own Food Ingredients Every Plant Based Burger and Milk Tested in a New Survey Carried a Fungal Toxin, and All of Them Were Legal At the Same Weight Loss, Keto Cut Liver Fat 67 Percent Versus 45 for Two Other Diets Vitamin C Does Not Stop You Catching a Cold, but It Does Do One Real Thing Ten Studies, One Cohort, an Exposure Nobody Measured The Calorie Restriction Benefit That Never Showed Up on the Scale Your Gut Remembers Your Prescriptions Blood NAD+ Doesn't Decline With Age, the Best Measurement Yet Finds Two Studies, 24 Hours Apart, Tie the Shingles Vaccine to Lower Dementia and Heart Disease Cold Plunging Helps You Feel Recovered, Not Perform Better, a 30 Trial Review Finds Your Gut Bacteria Turn Beetroot and Spinach Into a Blood Pressure Molecule A Month of Real HEPA Filtration Made Adults Over 40 Measurably Faster on a Brain Test, and Did Nothing for Adults Under 40 Two Drops of Peppermint Oil a Day Dropped Blood Pressure 8.5 Points in a Small Registered Trial A 1970s Compound Made Obese Mice Burn Up to 18 Percent More Energy, Without Losing Muscle An Antioxidant Sunscreen Preserved Skin's Mitochondrial DNA in the First Human Trial, Though the Main Result Just Missed Significance The Weight Loss Hormone GDF15 Protects the Liver, Even Without Weight Loss, Mouse Study Finds Three Minutes of Sprinting Changed 100 Times More of Your Blood Than 90 Minutes of Cycling Thirty Years of Creatine Trials, and Only Two Ever Checked Whether It Reached the Brain The Vitamin C Gummies That Promised 1,000 Milligrams Delivered Less Than 2 A Third Supplement Brand in Six Weeks Is Being Sued Over What Its Label Promises A Scallop Derived Brain Supplement Improved Memory, in a Trial the Company Selling It Paid For 496 Studies Say Your Health Tracking App Moves Your Blood Sugar, Not Your Cholesterol A Low Fat Vegan Diet Cut About 357 Calories A Day Without Anyone Eating Less Food Your Ankles, Not Your Legs, Are Why Walking Gets Harder With Age A Second Lab Just Confirmed It: Your Brain's Immune Cells Are Coming From Your Blood The Same Appetite Switch Causes Weight Loss Whether You Turn It On or Off Some of the Gut Bacteria Compounds on Supplement Labels Are Made by Your Own Body Regular Stair Climbing Is Tied to a 39 Percent Lower Risk of Dying From Heart Disease A Skin Patch Got People Into REM Sleep 43 Minutes Faster, No Drugs Involved Your Brain Starts Swapping Out Its Own Immune Cells at Around Age 50 A Bone Drug Already on Pharmacy Shelves Blocked Spinal Disc Damage in Fish One Amino Acid Helps Your Immune Cells Spot Tumors and Viruses, Mouse Study Finds A Chewing Gum Built From a Bean Protein Cleared Up to 93% of HPV in Patient Saliva Spokane's Wildfire Smoke Just Reached the Bay Area, More Than 700 Miles Away One 75 Minute Workout a Week Matched Three, in a 315 Person Trial Spokane's Wildfires Destroyed 600 Structures, and the Smoke Is Now in Four Cities A Review of 350 Studies Says More Protein May Not Be the Longevity Move Body Fat Percentage Beat BMI at Predicting Sperm Count, Even in Men at a Healthy Weight A Gut Bacteria Byproduct From Red Meat Is Linked to Irregular Heartbeat California Just Became the Fifth Wildfire Smoke Front of the 2026 Season Scientists Just Mapped the Nerve Signal That Turns a Good Meal Into a Memory Fiber Isn't the Only Plant Nutrient Feeding Your Gut Bacteria, and the Other One Just Got a Name Your Gut Lining May Remember Fiber for Weeks After You Stop Eating It Idaho Just Became the Fourth Wildfire Smoke Front of the 2026 Season GLP1 Pills May Curb Cravings Through a Brain Circuit No One Had Mapped Before A New Retinol Alternative May Finally Match It, Mechanism for Mechanism The 2026 Wildfire Season Just Opened a Third Front, This Time in Oregon A Daily Fiber Supplement Beat Physiotherapy for Knee Pain, Study Finds The FDA's Two Day Peptide Vote Is Over, and Six of Seven Passed A New Wildfire Front Just Opened in the Pacific Northwest Third Party Testing Found Some Ubiquinol Supplements on Amazon Contain Almost None of What They Claim A New Imaging Method Just Caught Collagen Damage Before Your Skin Looks Older A U.S. Senator Wants to Sanction Canada Over the Wildfire Smoke A 30 Plant Food Blend Beat a Probiotic Pill at Changing Gut Bacteria The Wildfire Smoke Didn't End, It Just Moved to Connecticut and Detroit New York's Wildfire Smoke Hit AQI 270, Its Worst Reading Yet, Then Started Clearing Your Sweetener and Your Antidepressant Might Not Mix the Way You Think New York's Wildfire Smoke Advisory Just Expanded to Cover All of NYC for the First Time One Avocado a Day Modestly Lowers a Heart Disease Risk Marker Most People Have Never Heard Of The Good Gut Bacteria That Turns on You Without Enough Fiber, Study Finds Losing Just 80 Minutes of Sleep a Night Causes Real Weight Gain, Study Finds It's Muscle Quality, Not Size, That Predicts Heart Attack Risk, Study Finds Why Your Probiotic Might Work Better With a Phytonutrient Partner, Trial Finds Fatty Liver May Start in the Gut, Not the Liver, New Study Finds FDA's Own Scientists Say No to BPC 157, TB 500, and MOTS C Compounding A New Oral Pill Just Beat Oral Ozempic in a Head to Head Trial Ozempic Poison Control Calls Nearly Doubled, and It's Almost All One Mistake Your Gut Bacteria May Decide Whether Plant Compounds Actually Work Creatine Might Help With Depression, But Only in a Specific Group So Far A 10,000 Person Study Just Mapped Which Foods Feed Which Gut Bacteria Diet Soda Might Be Raising Your Blood Sugar, New Analysis Finds The FDA Just Approved a New Sunscreen Ingredient for the First Time in 20+ Years Wildfire Smoke Season Is Already Twice As Bad as Normal in 2026 Harvard Finds the Exact Strength Training Dose Tied to Living Longer First Randomized Trial Finds Semaglutide Slows Biological Aging Nasal BPC 157 Is Trending, But the Human Data Isn't There Yet One Sauna Session Floods Your Blood With Immune Cells, Study Finds Summer Sunlight Doesn't Fix Vitamin D Deficiency in Older or Minoritized Ethnicity Adults, Study Finds

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