The secret to a happy marriage for men is choosing a wife who is smarter and at least five years younger than you, say UK experts.
What absolute nonsense. There is no universal "secret to a happy marriage", because everyone is different. And can you imagine the uproar if they insisted a woman's secret to a happy marriage was a husband smarter than herself?

The other way round, though, is apparently fine, and people cheerfully chirp out agreement with it.
I guess it must really suck to be a highly intelligent man or- if men are supposed to seek out smarter women- unintelligent woman, then?
As for younger, I'm always on the look out for older women, personally. At least they can usually be trusted to demonstrate a degree of sophistication and depth. Most of the women my own age I've encountered, or a few years older, no matter how nice they are, are not really women- they're
girls. I'm sure I'd find a similar problem with most of the men my age, were I interested in men.
To me, a happy marriage will likely be with someone of around my own intelligence. Also, there are far more important things to consider than age and intellect...