Most of the wormholes that could theoretically exist cannot be traversed, but adding an extra dimension makes it possible to make one you could pass through without dying
Source:
https://www.newscientist.com/article/2253157-travelling-through-a-wormhole-without-dying-may-actually-be-possible/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home