A 7-year study of 10,217 older adults found loneliness and memory are linked — but lonely people did not decline any faster. Here is what that changes.
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HIV Cure in Newborns? What the Monkey Study Actually Found
HIV cure in newborns? A new monkey study cleared the virus in eight infants — and found no trace the body had ever fought it. Here is what it really shows.
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The First 1,000 Days of Life Are Still Deciding Things
Britain ended sugar rationing in 1953 by an accident of history. Decades later, the first 1,000 days of life turn out to still be deciding who gets sick.
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A Compound Made Mice Burn Fat Without Losing Muscle — or Eating Less
A compound called TOFA made obese mice burn fat without losing muscle or eating less. Here’s what the 18% figure means — and what it does not mean yet.
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People Who Live Past 110 Share One Odd Immune Trait
People who live past 110 carry far more of one rare killer immune cell. Here is what the new study found, what it proves, and what it quietly does not.
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How Ozempic Works in the Brain: Scientists Had It Backwards
A Yale study found how Ozempic works in the brain is the reverse of what scientists assumed: it turns the hunger neurons up, not off. Here is what changed.
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Depression and New Brain Cells: What Scientists Just Found
Depression and new brain cells: a Columbia study found neurogenesis stalls in depression — and the cells that stall are the ones that keep today from blurring.
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Shingles Vaccine and Dementia: What the Study Actually Found
A study of 509,926 older adults linked the shingles vaccine and dementia risk: 18.8% versus 24.6% over four years. What it found, and what it cannot say.
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How Long Do Medications Affect Your Gut Bacteria?
How long do medications affect gut bacteria? A study of 2,509 people found nearly half of 186 drugs left traces years after the last dose. Here is what that means.
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How Much Sleep Do You Need? A 500,000-Person Study Found the Answer Is a Range
How much sleep do you need? A study of 500,000 people found the sweet spot is a range — and that sleeping too much ages you almost as fast as too little.