According to Thomas Perls, a researcher at Boston University, women outlive men in all developed countries and have been doing since at least the 16th century (despite deaths from childbirth). But the gap between men and women is closing.

Biological differences play a role, but there is growing evidence that lifestyle has a major effect on life-expectancy.

In the last 20 years, women have been taking on traditional male occupations and behavior patterns, such as, drinking and smoking. Over the same period, female deaths from lung cancer have risen sharply. Figures from Atlanta suggest middle aged smokers of  both sexes now have similar life expectancies.

Smoking may be “the great equalizer.”

Monastic life, on the other hand, can extend life expectancy and even-out the differential between men and women. Marc Luy, from the University of Rostock, Germany, found that monks and nuns with similar routines and low stress levels also have similar life expectancies.

So, with a regular routine, reduced stress and a positive outlook on life, men may catch up with us. It could happen!