Your RHR spiked this morning. 9 bpm above baseline.
Seems not much but it's your body flagged it before you felt anything.
Poor sleep, stress, hard training, alcohol, all of it shows up here first.
Rest instead of push.
9/
For anyone who trains, RHR is a recovery traffic light.
A spike the morning after a hard session = you're not recovered yet. (Now the CUDIS recovery score helps too)
Athletes who guided training with RHR, HRV and how they felt outperformed those who didn't. (Alfonso et al., 2025).