Do Agnihotra Stimulated Brainwaves Propagate throughout the Day?

Using the EEG headband, I monitored my brainwaves during an Agnihotra session (while not engaged in active meditation) and during the day while listening to a presentation.

Can we observe similarities in brainwave patterns during Agnihotra and during the day?

Below are screenshots of absolute brain waves during Agnihotra (without mediation) and during the day while listening to a presentation.

Brainwave readings during Agnihotra and without meditation

Brainwaves during the day while listening to a presentation

Observations

1. During both Agnihotra and during the presentation, the delta and theta brainwaves followed roughly similar upward and downward slopes.

1. The rise, peaks, and falls of the delta and theta waves during both Agnihotra and during the presentation followed similar time markers.

1. During both Agnihotra and during the presentation, the absolute amplitudes and changes in the delta and theta brainwaves seemed maintain a proportional ratio.

1. Agnihotra seemed to stimulate alpha brainwaves, as alpha waves were 32.4% of the total brainwaves during Agnihotra, as opposed to 23.4% while listening to the presentation.

1. While listening to the presentation, delta waves were predominant, accounting for 36.6% of the total brainwaves, as opposed to 26.2% during Agnihotra.

Does a consistent practice of Agnihotra promote delta and theta brainwave coherency, that lasts not only during Agnihotra but throughout the day? Is this sustained coherency promote mental tranquility?