Do not try this at home: hacking your brain with electronics

Neuroscientists are divided about whether electrical brain stimulation improves learning or helps depression, but that hasn't stopped DIY hackers giving it a try

Struggling with your mathematics homework? Sudoku proving too hard? Depression? ADHD? Post-traumatic stress disorder?

There's a solution: it involves strapping electrodes to your head and feeding a current through your brain. Sound good?