There were some sites where one percent of all the skulls have these holes, and so you can see that neurologic and psychiatric disease is quite common, and it was also quite common about 7,000 years ago.
在一处遗址所发掘出的头骨中 大约有百分之一有这样的洞， 所以神经系统和精神疾病是很普遍的， 在7000年前也是一样的。