If you delve into the wildest depths of the scientific literature, you will find a trilogy of papers so weird, that they have become legendary.

In these articles, spanning a 12 year period, author Jarl Flensmark says that heeled shoes cause mental illness, while flat footwear promotes brain health:

Is there an association between the use of heeled footwear and schizophrenia? (2004)Physical activity, eccentric contractions of plantar flexors, and neurogenesis: therapeutic potential of fla