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New Scientist. Science news and long reads from expert journalists, covering developments in science, technology, health and the environment on the website and the magazine.

human brain made of marijuana leaves

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How strong is the link between cannabis and schizophrenia?

Psychiatrist Deepak D’Souza says we are finally beginning to understand the relationship between cannabis use and schizophrenia, including which drug users are most at risk

Features

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Genetic errors are behind more than two thirds of early miscarriages

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The man smoke an electronic cigarette on the dark background; Shutterstock ID 519015292; purchase_order: -; job: -; client: -; other: -

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Patchwork vaping regulation can show the way to a smoke-free world

Leader

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The placebo effect means painkillers may work better with side effects

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How bad is vaping?

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How bad is vaping for your health? We’re finally getting answers

Features

Woman marking International Overdose Awareness Day

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Drug prevents fentanyl overdose for a month in monkeys

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Conceptual image of a neuron damaged by multiple sclerosis

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Removing zombie-like cells may help treat multiple sclerosis

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Brain implant could ease the effects of a traumatic injury years later

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Rare gene variants can change your height by up to 7 centimetres

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Ultrasound can push vaccines into the body without needles

Vaccinations could be made less painful by treating skin with a vaccine-laden liquid and using ultrasound to push it into the body

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Video

Music created from bioelectric recordings of cancer-treating plants

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Why does weed give you the ‘munchies’? Here's what the science says

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Cannabis probably doesn't help you sleep better

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Why some medical conditions are due to evolutionary design flaws

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