Has it become too costly to be a man in Kenya?

Globally life expectancy has been rising; we are living longer, thanks to advances in medicine. But why do women live longer than men in almost all countries of the world? In 2013 for example, women life expectancy was 4.4 years more than men globally. In Kenya, women are expected to live on average 3.25 years longer than men for the data 1960-2013. We all aspire to live longer and more happily, but why should one gender live longer under the same sun?

In the last two decades, everyone has been defending the girl child, should we shift to boy child now that there is historical injustice against men, costing them years of their lives?