Metabolic & Weight
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Crash Diets Rewire Your Gut to Sabotage the Next One
In mice, transplanting the gut microbes of weight-cycled animals into healthy ones handed over the bingeing with them. Crash dieting reshapes the gut, and the diet industry keeps selling you the fix for damage its last plan made.
Metabolic & WeightThey Sniffed Dark Chocolate on an Empty Stomach and Cranked Out 18 More Reps
Twenty-three fasted men sniffed 90 percent dark chocolate and did roughly 18 more leg-extension reps than on water, without feeling like they'd worked any harder.
Metabolic & WeightThe Heart Scan Sold to Everyone Barely Beats a Free Calculator, Except for the Patients Insurers Won't Cover
The scan barely moved the needle over a free calculator for most adults, but inside the muddy middle of risk, calcium separated a 1.9 percent ten-year danger from a 14.3 percent one.
Metabolic & WeightThe Fast Every Type 1 Diabetic Is Warned Against Held Up in a Six-Month Trial
Thirty-two obese adults with Type 1 diabetes ate only between noon and 8 p.m. for six months. No rise in severe lows, severe highs, or ketoacidosis, and their HbA1c fell 0.46 points against the calorie-cutting group.
Metabolic & WeightOzempic Gave Old Mice a Diet's Longevity Payoff Without Slowing Their Metabolism
Semaglutide added 12 percent to old mice's median lifespan and matched calorie restriction on aging measures without slowing their metabolism the way dieting does. It was also female mice only, three months of dosing, and zero human longevity data under the fountain-of-youth headlines.
Metabolic & WeightArsenic's 'Detox' Pathway Has a Catch: The Workers Who Finished It Had Higher Blood Pressure
In 393 young Central American farmworkers carrying arsenic in their urine, the men whose bodies most efficiently converted it to DMA had systolic pressure up to 7 mmHg higher. The textbook calls that step detoxification.
Metabolic & WeightA Blueberry Compound Pulled Fat Out of Muscle Cells by Saving the Protein That Burns It
Pterostilbene didn't switch on fat-burning in muscle cells. It stopped them from destroying the protein that runs it, and the stored fat came apart. The catch: this happened in a dish, and you can't eat your way to the dose.
Metabolic & WeightAt the Dose the FDA Calls Safe, Two Sweeteners Reshaped the Guts of Mouse Grandpups That Only Drank Water
Chilean researchers fed mice sucralose and stevia at the doses the FDA calls safe. The metabolic marks showed up in grandpups that only drank water.
Metabolic & WeightEurope Wants Every Heart Patient Tested for Kidney Disease. The Test Is Cheap. The Drugs It Funnels You Toward Are Not.
The European Society of Cardiology now says screen every heart patient for kidney damage and start the drugs early. More than 80 percent of the guideline's authors report financial ties to industry.
Metabolic & WeightWhat Fluoride Does Once It Gets Past the Teeth
As Washington fights over whether to keep fluoridating tap water, the sharpest evidence on childhood fluoride and cardiovascular risk comes from places where the dose dwarfs anything out of a U.S. tap. The whole argument is about how much.
Metabolic & WeightThe Cheapest Measurement in the Exam Room Beat BMI and the Lancet's Four-Part Obesity Formula
BMI flagged 37 percent of the adults a body-fat scan called obese. On overall accuracy, a cloth tape around the waist caught far more and edged out the four-measurement framework built to fix BMI.
Metabolic & WeightYour Immune Cells Remember Obesity for Up to a Decade After the Weight Comes Off
CD4 T cells hold chemical marks of past obesity for an estimated five to ten years, which may help explain why the risk for diabetes and some cancers can linger long after the scale reads normal.
Metabolic & WeightMindfulness Dropped Their Blood Pressure 7.6 Points. Diet, Movement, and Pills Did the Lowering.
Eighteen randomized trials found positive-psychology and mindfulness programs nudged blood pressure down within weeks. Look closely at the ones that worked best and the active ingredient was ordinary: coaching people to move more, eat better, and take their pills.
Metabolic & WeightYour Gut Remembers the Benzo You Quit Three Years Ago
Screen 2,509 people's guts against their prescription records and the fingerprint lingers: benzodiazepines, antidepressants and acid-reducers stay linked to a shifted microbiome years after the last pill, some rivaling antibiotics.
Metabolic & WeightThe Standard Treatment for This Fatal Lung Disease Killed More Patients Than Placebo. Now the Theory Behind It Is Back.
Eight patients died on the drugs, one on placebo, and a government safety board halted the trial for harm. Now a Nature Immunology review argues three kinds of inflammation work together in the disease after all.
Metabolic & WeightNew York Let Its Poorest Mothers Breathe Bus and Boiler Soot for Decades. When It Cleaned the Air, Toddler Scores Rose.
Columbia followed more than a thousand poor New York kids for twenty years as soot from buses and heating oil fell, and their age-3 cognitive scores came in 26 percent higher. How much of that the air can actually claim is the open question, and the sharper evidence is buried underneath it.
Metabolic & WeightBerkeley Dusted Off a Shelved 1970s Fat Compound That Burns Energy Instead of Appetite, and in Mice It Spared the Muscle
GLP-1 drugs quiet your appetite, and along with the fat they can pull out a real chunk of muscle. A shelved acetyl-CoA carboxylase inhibitor from the 1970s went after the other lever, energy burned, and in obese mice it left the lean mass alone.
Metabolic & WeightThe Exercise Paradox: Lousy for Losing Weight, Your Best Bet for Keeping It Off
A study of more than 1,100 people found activity did almost nothing for the pounds they shed, yet it was one of the strongest signals of whether that weight stayed gone.
Metabolic & WeightFluoride and Kids' Hearts: The Reassuring Study Tested Water Below What US Taps Are Told to Add
Researchers measured fluoride and heart risk in 161 Iranian children, and the main analysis found no significant link. But they drank water below the level US taps are told to add, and a different adjustment flipped the numbers.
Metabolic & WeightThis Weight-Loss Hormone Protected Mouse Livers Without a Pound Lost. Novo Nordisk Supplied It and Put Two Scientists on the Study.
The hormone works through the same brainstem switch that makes weight-loss drugs nauseating, and the company developing it supplied the compound, funded the mouse study, and put two of its scientists on the author list.
Metabolic & WeightThe Hunger Neurons Ozempic Was Meant to Silence Are the Ones Burning Your Fat
Silence the hunger neurons and semaglutide keeps killing appetite, but in Yale's female mice the lost fat came back within 15 days.
Metabolic & WeightHow 244 People Cut 357 Calories a Day Without Eating Less Food
The people on the low-fat vegan diet didn't count calories or shrink portions. They ate the same weight of food and took in hundreds fewer calories a day. The group that ran the trial also has a stake in what you conclude.
Metabolic & WeightThe 123 Percent Death-Risk Number in the Vitamin D Headlines Was Never Tested as a Pill
An observational study of 5,520 older Britons tied belly fat plus low vitamin D to a 123 percent higher death risk. Hand people the actual pill in a randomized trial and mortality drops about 5 percent, with nothing at all for the heart.
Metabolic & WeightLilly Turned the Receptor On, Amgen Turned It Off, and Both Strip Weight. The Map Came Four Years Late.
Eli Lilly's tirzepatide switches the gut-hormone receptor on. Amgen's MariTide blocks it. Both drive weight loss, and until a publicly funded Cambridge mouse study, no one had cleanly mapped how one receptor works in both directions.