There are also risks to consider: It's one thing to chance a 1 percent to 3 percent likelihood of a brain bleed, stroke or infection to implant an electrode in an effort to slow a fatal disease like Parkinson's.
Kuyinto into eyodwa - okwenza 1-3% ingozi ukopha, unhlangothi noma ubuchopho ukutheleleka emva yenzeka ka electrode ukuze ukubambezela lesi sifo esibulalayo like Parkinson.