Hardly anyone uses this surprisingly simple blood pressure fix
Salt substitutes offer a simple, low-cost way to reduce sodium intake and improve blood pressure, yet very few Americans actually use them—even among those who need them most. A large national analysis spanning nearly two decades found that usage remains surprisingly low and has not improved over time. Researchers say this gap represents a major…
Read MoreScientists turn MXene into tiny nanoscrolls that supercharge batteries and sensors
Scientists have transformed a groundbreaking 2D nanomaterial called MXene into an even more powerful 1D form—tiny scroll-like tubes that are incredibly thin yet highly conductive. By rolling flat sheets into hollow nanoscrolls, they’ve created structures that act like fast “highways” for ions, boosting performance in batteries, sensors, and wearable electronics.
Read MoreThis overlooked hormone could be why your blood pressure won’t drop
A large U.S. study reveals that more than a quarter of people with hard-to-treat high blood pressure may have an overlooked hormone problem. Elevated cortisol—often linked to stress—was found in 27% of these patients, far higher than expected. This hidden condition could explain why standard medications fail. The discovery could lead to new testing and…
Read MoreMonster black holes are silencing star formation across the universe
A blazing supermassive black hole can influence far more than its own galaxy. Scientists found that quasars emit radiation strong enough to shut down star formation in nearby galaxies millions of light-years away. This could explain why some galaxies near early quasars appear faint or missing. The finding suggests galaxies grow and evolve together, not…
Read MoreJust a few minutes of effort could lower your risk of 8 major diseases
Just a few minutes of getting out of breath each day could dramatically cut your risk of major diseases—including heart disease, dementia, and diabetes. A large study of nearly 100,000 people found that it’s not just how much you move, but how intensely you move that matters. Short bursts of vigorous activity—like rushing for a…
Read MoreNASA’s asteroid Bennu sample reveals a hidden chemical patchwork
Scientists studying Bennu samples have discovered that its chemistry is far from uniform. Organic compounds and minerals cluster into three distinct types of regions, each shaped differently by past water activity. This uneven pattern shows that water altered the asteroid in a complex, localized way. The survival of delicate organic molecules adds an important clue…
Read MorePhoto & Video Chronology — March 31, 2026 — Kīlauea summit monitoring overflight
USGS Hawaiian Volcano Observatory scientists completed a helicopter overflight of the Kīlauea summit on March 31, 2026, during which they captured photos of the eruptive vents in Halemaʻumaʻu, along with the tephra deposit from the ongoing episodic lava fountaining eruption.
Read MoreMAHA says red meat and beef tallow will make you healthy. The American Heart Assn. isn’t buying it
The American Heart Assn. is the latest medical association to issue guidelines that conflict with Robert F. Kennedy Jr.’s MAHA-friendly guidelines.
Read MorePredicting Harmful Algal Blooms and Toxicity in the San Francisco Estuary
In fall 2023, National Oceanic and Atmospheric Administration (NOAA) awarded a five‑year, $3 million Monitoring and Event Response Research Program (MERHAB) grant to improve Harmful Algal Bloom (HAB) detection in the San Francisco Estuary.
Read MoreComet MAPS faces a make-or-break moment as it dives toward the sun on April 4 — could it shine in the daytime sky?
Comet MAPS is about to face its ultimate test as it sweeps just 101,000 miles above the sun’s surface.
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