“Can you sleep too much?  Likely, no, but too little can cause health consequences.”

Views expressed in this science and technology update are those of the reporters and correspondents.

Accessed on 06 December 2025, 2359 UTC.

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Russ Roberts (https://hawaiisciencejournal.com).

Today’s top stories

Health

Can You Sleep Too Much? Likely No, but Too Little Can Create Health Consequences

Learn how it’s not possible to sleep too much and how each person’s sleep needs differ.

Mind

Afraid of Nature? You May Be One of the Many People Around the World With Biophobia

Planet Earth

Axolotls Can Regrow a Key Organ From Scratch, Allowing Immune Cells to Fight Infections

The Sciences

A Tiny Dinosaur Swallowed Too Many Stones, Died — and Left Behind a 120-Million-Year Mystery

The Sciences

A Hidden Molecular Clock in Maggots Could Transform Forensic Time-of-Death Estimates

The Sciences

Dust Devils on Mars Crackle and Pop with Electricity, Showing How Sparks Fly in Martian Storms

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Is There a Benefit to Having Neanderthal DNA in the Human Genome?

Health

The Strange Rise of Scromiting — Most Common Among Young, Heavy Cannabis Users

Planet Earth

This Frog’s Secret Power? Eating Venomous Murder Hornets Like Popcorn

Planet Earth

Global Feta Cheese Supply Threatened as Virus Kills Almost 500,000 Goats and Sheep in Greece

Planet Earth

Crickets That Munched on Microplastics Grew 25 Times in Body Size, and Spread Nanoplastics

The Sciences

Tiny Throat Bone Confirms Nanotyrannus as Own Species — Adding Another Predator to the Late Cretaceous 

The Sciences

Volcanic Eruptions May Have Been Responsible for the Spread of Black Death in Medieval Europe

Health

Calorie Counting and 10,000 Steps a Day — How Closely Should You Follow These 5 Health Goals?

The Sciences

Duck-Billed Dinos Broke Their Mates’ Tails, Exposing Dinosaur Sex and Sexual Difference

Health

Shingles Vaccine May Reduce Dementia Risk and Could Slow Disease Progression

The Sciences

Ancient Genomes Expose 200,000 Years of Human Isolation in Southern Africa

November/December

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The November/December 2025 issue of Discover Magazine

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