Part 6/9:
Science journalist Alex Hutchinson explains that although the concept of using electrical currents to enhance brain function dates back thousands of years (from ancient healers applying electric torpedo fish to modern devices), robust scientific evidence for TDCS's effectiveness remains limited. Small studies suggest potential benefits for treating depression, anxiety, Parkinson's disease, and chronic pain, but conclusive proof of its efficacy in athletic performance is lacking.
Additionally, concerns about safety and long-term effects persist. While current research indicates that TDCS is generally safe and its electrical fields are comparable to natural brain activity, comprehensive understanding of its long-term implications is absent.