I dont think its that women are smarter but it does go back to the fundimental differences between men and women.
If a women has a problem (emotionally or physcially) she is STATISICALLY more likly to talk to someone. That someone maybe a friend, partner, family or medical proffessional. Men however are taught from a VERY young age that they arent surposed to complain, or talk about there feelings or problems. They are taught to hold that inside. Its why most men rarly cry except with PHYSICAL pain (ie if you hit a guy in the balls his eyes will tear but he wont cry when he is upset).
To be honest changing this sterotype is one of the best things feminisium has done for the world but it takes ALONG time to change.
Young men (my age for instance) are more likly to go to a doctor for depression than someone my dad's generation and DEFINITLY more likly than my grandparents.
This goes for physical symptoms as well, including those for a heart atack which is why most women will have there heart atack in hospital where it can be treated and most men will have it at home where they will probably die before reciving the care that could save there lives
This is something that is the focus of LOTS of health policy advisers, social justice workers in the health sector and even femist groups.
Its a sad reality
Now on to sexual health
When it comes to sexual matters most men wont talk about them even with there friends or partner. Women tend to do this better than men do. This is why so many cases of impotence are left untreated, because although the treatment is there few men seek it. Its also one of the reasons for the higher rate of mortality from prostate cancer, because unlike women who HAVE mamograms, DO check themselves, men DONT seek the regular health checks they need. Actually i should see if i can find a study on homosexual v hedrosexual male health, i have a feeling that homosexuals would be more likly to seek medical care but im not sure on that