15 Ways Women Are Tougher, Luckier, and Smarter Than Men

We're Faster

Well, at least our circadian rhythms are faster. Researchers at Harvard-affiliated Brigham and Women's Hospital found that the cycle length of the daily biological clock in women was shorter than it was in men (six minutes, on average). This means that many of us tend to wake up earlier—and this gives us an excuse to go to bed earlier than our partners.