Why is there so little focus on men's health?

Men live 6 years less than women and are more likely to be victims of the 15 top causes of death. Prostate cancer is now the most common cancer.

Despite these facts all I see are campaigns for women’s health. Pink ribbons are everywhere I look.
No, I am not. See any prostate cancer campaigns? No, you don’t. It is all breast cancer.

Several times more research money is spent on women’s health issues than men’s as well.