Surprise found in why some ancient brains don’t decay

Researchers studying preserved brains in archaeological contexts have identified an unusual pattern: in wet and low-oxygen conditions, some brain proteins can form stable structures that resist decay. The finding matters because it links post-mortem preservation with biological pathways that are also relevant to brain ageing and Alzheimer’s disease.

What happened

The research found that brain preservation in archaeological contexts is not random. Certain proteins appear more likely to survive after death when the burial environment is wet and low in oxygen. The same proteins are often connected with brain ageing and Alzheimer’s-related pathways.

Why the finding is important