Regarding the limits to the attractiveness of a very low voice, my pet theory is that they start to sound too mellow and like they belong to an inactive person.

Regarding the limits to the attractiveness of a very low voice, my pet theory is that they start to sound too mellow and like they belong to an inactive person. Someone who can absorb the stress of the day, be alert and active, and still have a deep voice, stands out, and those men are going to be physiologically forced out of the lowest ranges after spending time upright even if they don't tighten in response to stress. Again, just a pet theory, mostly based on past colleagues whose voices almost put me to sleep.