Researchers genetically engineered the parasite Toxoplasma gondii to deliver drugs across the blood-brain barrier. This innovative approach has been used to deliver therapeutic proteins to neurons, showing promise for treating neurological conditions like Rett syndrome. The research highlights the potential for parasites to act as delivery vehicles for large molecules that typically struggle to penetrate the brain. This breakthrough could lead to new treatments for a variety of neurological disorders.

Researchers enabled a silent person to produce speech using thought alone. Depth electrodes in the participant's brain transmitted electrical signals to a computer, which then vocalized imagined syllables. This technology offers hope for paralyzed individuals to regain speech. The study marks a significant step towards brain-computer interfaces for voluntary communication.