Does my comfortable note range include my head voice?

[fkeac]

So I just saw this video 

It's about the maximum resonance point which is the note range in which your voice sounds the most relaxed, confident and likeable. In order to find which notes are my maximum resonance point I'm supposed to figure out why my comfortable note range is. This sounds self explanotory but I'm not sure if I'm doing it right. Finding my deepest comfortable note is easy, but the highest is not. I'm not good at bridging so I have a comfortable note range right before I switch from chest to head voice and then a few notes after having bridged, speaking in the higher voice is comfortable again for a few notes. So I'm not sure if my comfortable range is up to the note where I have to bridge or up to my highest comfortable head note.

I'd really appreaciate all yours insight into this topic