In this talk Maria Teresa Ferretti, CSO of the Women’s Brain Project, uses longcovid as an example of a neuro-immune condition that affects overwhelmingly women. There are more examples, from multiple sclerosis to Alzheimer; in the past, many of these diseases have been dismissed and misdiagnosed in women. But things are changing. This is an occasion to discuss medical biases, but also new opportunities for medicine to learn from sex differences and find novel solutions, listening to the patients.