Exosomes, Hypothalamus, and the Body Clock
Tiny vesicles from young animals can reverse aging in older ones, but the real mystery may lie in who controls the body's master clock.
By Josh Mitteldorf · Jul 27, 2026
Deeper reporting,
thinking made visible.
Longer essays and features from Science Blog. Pieces here go through additional research and review.
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Does consciousness collapse the wave function?
A resolution could remake physics itself, forcing us to choose between a participatory universe and one where consciousness is merely along for the ride.
By Josh Mitteldorf · Jul 27, 2026
There's a rule that quietly stops the pilot and co-pilot from eating the same meal, and the reason behind it is more unsettling than you'd…
A single meal could ground an aircraft and leave hundreds of passengers with no one qualified to fly the plane home.
By Kiran Journals · Jul 25, 2026
There's a reason every aeroplane window has a tiny hole in it, and it's not the reason most people assume
What passengers mistake for a safety valve is actually solving an entirely different problem—one that keeps the window from becoming a catastrophic weak point.
Jul 24, 2026
Faced with losing its last forests, Costa Rica made a bet no country had tried at scale
A tiny nation watched its forests vanish in decades, then discovered that paying landowners to protect trees worked better than punishment ever could.
Jul 24, 2026
7 habits of people who stay genuinely happy into their 70s
The science of aging suggests contentment isn't luck—it's built through deliberate patterns that compound over decades.
By Lachlan Brown · Jul 24, 2026
The longest study of human happiness ever run has followed the same people for more than 80 years—and its clearest finding isn't wealth…
Eight decades of data from thousands of lives point to a single factor that predicts whether you'll be healthy, happy, and living longer—and it has nothing to do with money or success.
By Lachlan Brown · Jul 23, 2026