If it's acute and this is not a phase of training when we're trying to really push, then maybe we back off a little bit. If it's the opposite though, we need to probably make some changes and give ourselves some recovery. This may include anything from a moderate training session, maybe I'm going to go in the sauna and sit through that, and then do some breathing drills and some mobility stuff. Great. Maybe I'm going to go to the gym and ride the bike at 50% heart rate. Something restorative like that.