The microbes that take hold in our bodies during early life have long-term effects on our brain health. Helen Thomson investigates how to get kids’ microbiomes off to the best start.
Antidepressants vary widely in their physical side effects
Antidepressants can be very effective, but they also come with side effects that vary from one drug to the next, supporting the idea of more personalised prescriptions
Exclusive: Climate scientists expect attempts to dim the sun by 2100
An exclusive New Scientist survey of leading scientists reveals widespread concern that schemes to tweak Earth’s atmosphere could launch within decades in a risky bid to cool the planet
Ultracold atoms could test relativity in the quantum realm
Confining and rotating extremely cold atoms or molecules within atomic “Ferris wheels” made from laser light could test relativity’s predictions on the quantum scale
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How worried should we be about noxious chemicals from dead satellites?
We have more satellites than ever before, but when they burn up they create a new kind of air pollution. Evidence is now revealing what effects this could have and how to tackle it
Neanderthal-human hybrids may have been scourged by a genetic mismatch
When Homo sapiens and Neanderthals interbred, a genetic variation affecting red blood cells may have hindered reproduction in women who were hybrids, and this might have played a part in Neanderthals’ demise
A distant comet is forming new rings while we watch in real time
The comet-like object Chiron has been caught in the process of forming new rings, which could help us understand how these complex systems work
Everything is perimenopause now – but what if it’s not?
Many of the signs of perimenopause can also be symptoms of other conditions, and some of these get increasingly dangerous if they’re misdiagnosed
Breastfeeding causes a surge in immune cells that could prevent cancer
Breastfeeding seems to cause specialised immune cells to flood into the breasts and stay there for years or even decades, reducing the risk of cancer
The extraordinary influence of the lymphatic system on our health
It has remained mysterious for millennia, but we’re finally uncovering the profound role the lymphatic system plays in everything from preventing dementia to fighting cancer