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.
بعضى محلها بودند كه در آن يك درصد همه جمجمه‌‌ها اين سوراخها را داشتند، و پس متوجه مى‌‌شويد كه امراض اعصاب و روان نسبتاً شايع بوده است، و همچنين حدود ٧٫٠٠٠ قبل نسبتاً شايع بود.