Proteins are very stable over time if stored in a specific way, the specific way is aggregate formation. It was interesting to learn that brain protein aggregates were more stable than DNA. Axel Petzold More Quotes by Axel Petzold More Quotes From Axel Petzold The manner of this individual's death, or subsequent burial, may have enabled the brain's long-term preservation. Axel Petzold A contemporary brain just dissolved, but the Heslington brain continued to reveal more and more proteins. Axel Petzold