New Scientist
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In this week’s issue: How to understand your risk of Alzheimer’s - and what you can really do about it.

Grab a copy in shops now or download our app for digital editions.⁠
www.newscientist.com/issue/3564/
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Hard plastic made from bamboo is as strong and durable as conventional plastics for uses such as household appliances and car interiors, but also recyclable and biodegrades easily in soil.
Biodegradable plastic made from bamboo is strong and easy to recycle
Bamboo is a highly renewable resource, and its cellulose fibres can be turned into a hard, mouldable plastic for use in cars and appliances
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Science fiction legend Ursula K. Le Guin is honoured with a new collection out this month, and sci-fi fans can also look forward to fiction from astronaut Chris Hadfield and award-winning authors Ken Liu and Mary Robinette Kowal
The best new science fiction books of October 2025
Science fiction legend Ursula K. Le Guin is honoured with a new collection out this month, and sci-fi fans can also look forward to fiction from astronaut Chris Hadfield and award-winning authors Ken Liu and Mary Robinette Kowal
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Just because a food is ultra-processed doesn’t mean it is unhealthy. Regulation and eating advice must reflect this, say Julia Belluz and Kevin Hall, co-authors of Food Intelligence: The science of how food both nourishes and harms us
Why not all ultra-processed foods are bad for you
Just because a food is ultra-processed doesn’t mean it is unhealthy. Regulation and eating advice must reflect this, say Julia Belluz and Kevin Hall, co-authors of Food Intelligence: The science of how food both nourishes and harms us
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Scientists have identified five sleep profiles, each of which is linked to distinct mental health symptoms and brain activity patterns
There are five types of sleep – here's what that means for your health
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