People Who’ve Woken Up From A Coma Have Shared Terrifying Insights Into What It’s Really Like

And the WebMD entry also provides an explanation for why people may enter a comatose state. “Comas are caused by an injury to the brain,” the description continues. “Brain injury can be due to increased pressure, bleeding, loss of oxygen or buildup of toxins. The injury can be temporary and reversible. It also can be permanent.”