Table of Contents Dec 2018

New research is suggesting that lifestyle adjustments might help to lessen the effects of Alzheimer's disease. The findings are hinting that treating the degenerative brain disease might be more achievable than we thought.

Two kinds of bugs feature in this issue of Discover as well: One type lives in our homes, another in our bodies. Scientists say we should be a little more lenient towards one of them — we'll leave you to figure out which.

Finally, writer Adam Hadhazy takes on the quest for a paradoxical object: A magnet with only one pole. It flies in the face of what most of us know about magnets, but solving the mystery could help physicists finally flesh out their theory of everything.

Digital editions


Devastating diseases can catch us unaware, but medical experts are developing digital tools to prevent future chaos.
For centuries, physicists have hunted for magnetic monopoles to help put together their theory of everything. They may be closer than ever.
How a pitched chemical battle in our home unwittingly creates a playground for pests.
Armed with big data, researchers turn to customized lifestyle changes to fight the disease.


Penguins Antarctica
Huge in pop culture, the birds were once even bigger — some over 200 pounds. Today, their downsized descendants live everywhere from ice shelves to subtropical beaches.
Researchers design bacteria to gobble up antibiotics in the environment, before microbes have a chance to turn deadly.
Thirty years after flames ripped through Yellowstone, scientists study the sites to understand how future fires affect ecosystems.
A healthy 29-year-old collapses and remains in a coma despite months of treatment.

Skipping vaccination isn't new. And like today, many in the 19th Century anti-vaccination movement hailed from large cities, were educated and earned a decent living. 


Screen Time of the Sexes
Hollywood movie roles for women may have turned a corner.
Degrees of Separation
From threatened lands to ants’ workloads.
Got someone on your holiday list who needs a book? Trick question. Of course you do, everyone needs books! Here are a few new science reads worth giving — or keeping for yourself.
Heat it up, then cool it down.
Pondering the impenetrable fog of the early universe.
A geologist’s experience reveals how Yosemite National Park’s Half Dome gets its shape.