This article is taken from the monthly magazine Sciences et Avenir n°948, dated February 2026.
For decades, psychiatry has had to contend with a lack of therapeutic innovation. But this era may be coming to an end. Several signs point to this. First, on the political front: the major national cause for 2026 will be the same as that of 2025—mental health. But also on the research front: while psychedelics are making a strong comeback, another, more discreet but promising avenue is generating increasing interest: psychobiotics.
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