Ancient Brain Surgery: The Terrifying Trepanation Drill 🧠🔨 Centuries before anesthesia, scalpels, or hospitals, healers practiced trephination — drilling or scraping a hole into the skull to release “evil spirits,” treat seizures, or relieve pressure from head injuries. This procedure dates back over 7,000 years, appearing in cultures across Africa, Europe, and the Americas. And here’s the shocking truth — many patients survived, leaving behind skulls with smooth bone regrowth that proves succ