Two sessions effect


I was experimenting doing a second session immediately after the first.
I’ve noticed that my second sessions are consistently much calmer then the first.

For example I try first one session 3 min with 6% calmness. Immediately after without even getting up, I start new session. (Yes, it needs calibration) The second session is 7 min and get me 45% calmness.

This effect corresponds well to my subjective feeling of calmness. But also during calibration minute of the second session I’m much more lax.

My question is:
Does someone also have noticed similar? Are there any explanations? (apart from personal quirk) Additionally: Even it is completely psychological but well established in many persons, could it be a recommendation? In a sort of: “to get even more calmer try 2 sessions not one long”