{"id":185701,"date":"2024-03-21T18:27:25","date_gmt":"2024-03-21T23:27:25","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2024\/03\/human-brains-preserve-in-diverse-environments-for-at-least-12-000-years"},"modified":"2024-03-21T18:27:25","modified_gmt":"2024-03-21T23:27:25","slug":"human-brains-preserve-in-diverse-environments-for-at-least-12-000-years","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2024\/03\/human-brains-preserve-in-diverse-environments-for-at-least-12-000-years","title":{"rendered":"Human brains preserve in diverse environments for at least 12 000 years"},"content":{"rendered":"<p style=\"padding-right: 20px\"><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/human-brains-preserve-in-diverse-environments-for-at-least-12-000-years3.jpg\"><\/a><\/p>\n<p>Human brains preserve in diverse environments for at least 12 000 years\u2014new research in Proceedings B this week: <a href=\"https:\/\/royalsocietypublishing.org\/doi\/10.1098\/rspb.2023\">https:\/\/royalsocietypublishing.org\/doi\/10.1098\/rspb.2023<\/a>.<\/p>\n<p>Soft tissue preservation in the geological record is relatively rare, and when an archaeologist digs a human skull out of the\u2026<\/p>\n<hr>\n<p>The brain is thought to be among the first human organs to decompose after death. The discovery of brains preserved in the archaeological record is therefore regarded as unusual. Although mechanisms such as dehydration, freezing, saponification, and tanning are known to allow for the preservation of the brain on short time scales in association with other soft tissues (\u22724000 years), discoveries of older brains, especially in the absence of other soft tissues, are rare. Here, we collated an archive of more than 4,400 human brains preserved in the archaeological record across approximately 12 000 years, more than 1,300 of which constitute the only soft tissue preserved amongst otherwise skeletonized remains. We found that brains of this type persist on time scales exceeding those preserved by other means, which suggests an unknown mechanism may be responsible for preservation particular to the central nervous system. The untapped archive of preserved ancient brains represents an opportunity for bioarchaeological studies of human evolution, health and disease.<\/p>\n<p>Since the mid-17th century, more than 4,400 human brains have been unearthed from the last 12 000 years of the archaeological record, over 1,300 of which are preserved among otherwise skeletonized remains. Despite this volume of finds, the perception remains that preserved brains represent \u2018unique\u2019 or \u2018extremely rare\u2019 discoveries [1]. Human soft tissues are understood to persist through time by well-characterized mechanisms of preservation such as dehydration, freezing and tanning, brought about by anthropogenic (i.e. the result of deliberate human intervention) or naturally occurring factors. Thus, it is not surprising that the brain endures alongside other internal organs where there is extensive soft tissue preservation.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Human brains preserve in diverse environments for at least 12 000 years\u2014new research in Proceedings B this week: https:\/\/royalsocietypublishing.org\/doi\/10.1098\/rspb.2023. Soft tissue preservation in the geological record is relatively rare, and when an archaeologist digs a human skull out of the\u2026 The brain is thought to be among the first human organs to decompose after death. [\u2026]<\/p>\n","protected":false},"author":662,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11,385,1495,47],"tags":[],"class_list":["post-185701","post","type-post","status-publish","format-standard","hentry","category-biotech-medical","category-evolution","category-health","category-neuroscience"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/185701","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/users\/662"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=185701"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/185701\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=185701"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=185701"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=185701"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}