On the internet, Alzheimer’s disease stirs up conversations. Hundreds of studies are relayed testifying to new causes involved in the onset of this neurodegenerative disease or, conversely, advice on how to protect yourself from it. “Hormonal treatment would reduce the risks”, “Covid infection would increase the risk”, “watching too much television for hours would increase the risk of dementia”. Some scientists have even hacked our plates to claim that “people consuming ultra-processed foods are at greater risk.” No more croissants and other pastries! Faced with the statement of all these recommendations, from the most logical to the most eccentric, Mathie