4 ms·

It's also a great way to get injured. Then you can't exercise at all.

• aqme28 4y ago
  Is it actually any more injury prone?
  • mftb 4y ago
    It's a fair question. I didn't see any mention of injury in this study and I never see it discussed in these threads. I also admit my bias, I'm an older runner, and I've seen a lot of people struggling, who've unwittingly, been over-optimizing training and just over-training.
  • brodouevencode 4y ago
    As with everything fitness, it depends.