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I've had fallen arches since a kid and was told I can never be a runner and I'll have a tough time with my feet.

Nowadays I run mountain ultra marathons and my feet are fine, my flat arches give me no trouble at all.

Fallen arches are not a problem.

Lots and lots of people with plantar fascitis are rolling their ankles. Sometimes I get lazy and lump them all in together with the 'fallen arches' crowd which is really something different and nothing I said here is going to help you with that. Apologies for the mixup.

But if you are rolling your ankles, do yourself a favor and figure that shit out while your ligaments are still in good shape.

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