I understand the metaphor you’re using, but for the sake of clarity I feel compelled to explain that there is a big difference: ankle-spraining significantly increases in likelihood with each subsequent instance. So “spraining ‘em all” even once would literally result in long-term degradation and increased frequency of injury. They would take less to heal, but would also get injured so often that the aggregated result would be worse than before.

Sadly joints tend to work a bit differently from the immune system (with some exceptions).