Scientists have discovered that DNA patterns in our bodies can predict who will benefit most from psychotherapy, opening doors to personalized mental health treatment. Researchers studying nearly 900 people with obsessive-compulsive disorder found specific genetic markers that signal whether intensive therapy will work—before treatment even begins.

The breakthrough reveals that our epigenetic signature—essentially how our genes are switched on and off—holds clues to treatment response. These markers relate to how our brains form new connections, manage stress, and regulate immunity. The findings suggest doctors could soon use simple saliva tests to match patients with the therapies most likely to help them, while also identifying those who might need alternative approaches. Read the full story →

Today's takeaway: Precision medicine is coming to mental health, potentially ending the trial-and-error approach to treating disorders like OCD.