BOSTON — Just when you thought it was safe to comment on the hours-of-service debate, along comes research showing that women and men work on different sleep cycles.

A new Harvard University study conducted by researchers at the Harvard-affiliated Brigham and Women’s Hospital shows that women’s circadian rhythms run six times faster than men’s.

Researchers placed 157 people in a windowless sleep lap in Boston for eight weeks straight. Isolated from all cues about the time in the outside world, their bodies were forced to go back to their natural circadian rhythms.

What they found was, in the evenings, women want to go to sleep about six minutes earlier than men; and about 50 percent more women than men report early-morning insomnia, like when you wake up too early but can’t get back to sleep

We here at todaystrucking.com marvel at the ramifications.

Not only could this one day factor into the endless hours-of-service debate, but husbands around the world must now realize that if a wife rebuffs advances with “I’m too tired and would rather sleep,” she’s probably telling the truth.

On the other hand, the Harvard study also shows that maybe, just maybe, if husbands woke up a little earlier….