Exploring the Brain, One Neuron at a Time

A single dose of an anti-inflammatory drug reversed autism-like symptoms in adult mice in just two hours, including brain overactivity, sensory sensitivity, and repetitive behaviors. The rapid improvement suggests that adult brain circuits retain far more plasticity than scientists previously thought, opening new possibilities for treating neurodevelopmental conditions.

Psilocybin from magic mushrooms produces lasting changes in brain activity that persist for up to a month after a single dose. People who experienced the greatest increase in flexible brain activity reported more personal insight and later improvements in well-being, suggesting the psychedelic experience may help break rigid thinking patterns.

Scientists have pinpointed a critical tipping point that determines whether Alzheimer's-related brain changes progress to dementia—how the brain's immune cells respond to plaques and tau. This discovery reveals a promising new therapeutic target that could extend cognitive resilience in people at risk.

Newer oral versions of GLP-1 drugs like Ozempic reduced pleasure-driven eating in mice by quieting a deep brain reward circuit. The finding could expand treatment options beyond weight loss to include managing food cravings and potentially even substance use disorder.