This is a curated articles about the latest discoveries in science and interesting articles tackling technology and society.
Gum disease and Alzheimer’s: Your questions answered: Debora MacKenzie
People are questioning a landmark study suggesting that a bacterium involved in gum disease may also cause Alzheimer's. Here's what you need to know about the study
Vaping beats nicotine gum at helping people quit smoking: Clare Wilson
In a head-to-head test, vaping was more effective at helping people quit smoking than nicotine patches and gum
People are seeking sperm donors online, but are the risks worth it?: Clare Wilson
Meeting your sperm donor offers a more personal experience, but the medical and legal complications might outweigh the benefits
Black holes eat negative energy and vomit out huge powerful jets: Leah Crane
Many black holes shoot out powerful jets of plasma and radiation, and they may be partially powered by strange particles that appear to have negative energy
Siberian cave reveals secrets of its mysterious Denisovan inhabitants: Colin Barras
Denisova cave in Siberia was home to an ancient group of humans – and now we get a glimpse of some of the beautiful artefacts they left behind
So far 2019 has set 33 records for heat, but none for cold: Sam Wong
While North America is gripped by a polar vortex, no cold records have been broken. Meanwhile, 33 records for heat have been set this month in the southern hemisphere
Loot boxes in games like Fortnite are gambling and should be regulated: Rebecca Cassidy
[Virtual winnings in video games don’t count as betting in the UK. Regulators must recognise that children are being exposed to gambling, says Rebecca Cassidy
](https://www.newscientist.com/article/2192389-loot-boxes-in-games-like-fortnite-are-gambling-and-should-be-regulated/)
Mind-reading implant can decode what your ears are hearing: Clare Wilson
Electrodes put into the brain have decoded what people are hearing – the next step could be to read their thoughts
Can scanning books really reveal if the US is becoming more tolerant?: Chelsea Whyte
An analysis of books shows that cultural norms are loosening in the US, but it may be missing the views from underrepresented groups in publishing
We may finally know what causes Alzheimer’s – and how to stop it: Debora MacKenzie
Evidence is growing that a bacteria involved in gum disease causes Alzheimer's, raising hopes over new kinds of treatments that are currently undergoing testing
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