What's the story on trepanation?...

What's the story on trepanation? "Sound advice for troubled times, bub. Trepanning, also known as trephination, is the art of boring a hole in the skull for medical, mystical, or, God help us, recreational purposes. Practiced since the Stone Age (hence the "oldest known surgery" sobriquet), trepanning was common well into the 19th century, and a few iconoclasts are attempting to revive it today. One thinks with a shudder: Could this be the next goth fad?"