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Stuart Ritchie

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There’s no good evidence that new weight-loss drugs cause suicidal thoughts

It’s not the first time that unexpected side effects of the GLP-1 agonists have been discussed, though until now the positives have been emphasised

How vaccinating Tasmanian devils could spare humans another pandemic

Is vaping in pregnancy just as bad as smoking? A new study gets it wrong

Article thumbnail: This undated image courtesy of, Dr. Timothy Rittman, University of Cambridge, shows an MRI image of a healthy brain (L) and an Alzheimer's brain (R) with large black gaps where brain has shrunk. - Toxic protein clusters thought responsible for the cognitive decline associated with Alzheimer's disease reach different regions of the brain early and then accumulate over the course of decades, according to a new study on October 29, 2021. The research, published in Science Advances, is the first to use human data to quantify the speed of the chemical processes leading to the neurodegenerative condition, and could eventually have important implications for how scientists design treatments. It also upends a long-held theory that said the clusters start at a single point and then trigger a chain reaction in other regions, as has been found in mice and was thought true of people too. (Photo by Timothy Rittman / University of Cambridge / AFP) / RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT "AFP PHOTO / Dr. Timothy Rittman, University of Cambridge" - NO MARKETING - NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS / TO GO WITH AFP STORY by Issam AHMED, "Scientists discover cause of Alzheimer's progression in brain" (Photo by TIMOTHY RITTMAN/University of Cambridge/AFP via Getty Images)

Why the UK should not follow Australia’s legalisation of psychedelics for mental health

Why you can ignore the WHO claims that aspartame sweetener is a cancer risk