Well, a slowing gait speed does strongly correlate with increasing mortality in the elderly: https://pmc.ncbi.nlm.nih.gov/articles/PMC3080184/ https://pmc.ncbi.

Well, a slowing gait speed does strongly correlate with increasing mortality in the elderly: https://pmc.ncbi.nlm.nih.gov/articles/PMC3080184/ https://pmc.ncbi.nlm.nih.gov/articles/PMC3080184/ So we have to distinguish between walking slowly deliberately vs because one has trouble walking faster.