Women who marry men close to their own age, live longer. At least, that's what one Danish study found. Oddly, this never seems to make the headlines.
http://www.yourtango.com/200927620/wives-older-husbands-die-younger
Die young? Get divorced? Which to choose? Luckily other research supports the idea that age differences don't affect divorce rates.
Other research out there contradicts this guy's findings. The other research seems to have looked at more data over a longer time period.
An American study (2008) found that there was no relationship between divorce and age differences in the couple. Rather the age differences for the couples followed different patterns in different years of marriage. When you controlled for that, the rate of divorce for couples with different age differences was the same. If I'm not making sense, the abstract may help:http://www.ncbi.nlm.nih.gov/pubmed/18700520
A british study also found that the likelihood of divorce does not seem to be influenced by age differences. However, for older generations, if there was an age gap over 10 years and individual age over 30, the divorce rate was higher.
http://www.statistics.gov.uk/pdfdir/agd0608.pdf
A few questions about the Swiss research:
1. What happens as the age difference between the man and the woman gets bigger? Is there a point where the chance of divorce starts to increase again (say when they are 10 years apart)?
2. What will happen to the couples in the future? The study only looked at the first 5 years.
3. Does it matter that the study looked at couples who were living together as well as married couples? Maybe young women are less likely to live with older men. Couples that live together are more likely to break up.
4. A morbid thought pointed out in some other research - at some point, couples with much older men will have fewer divorces because they have more dead men/widows.



