American men make up the bulk of suicides in US

Did you know that suicide is the tenth highest cause of death in the United States? And men die by suicide 3.5 times more than women. 
According to 2015 official data by American Association of Suicidology, 121 people died by suicide every day out of which 93 were men. The recent death of 52-year-old Seattle grunge rock icon, Chris Cornell, who killed himself after a concert in Detroit came as a shocker to many but its a reflection of scores of middle-aged American men who attempt or die by suicide each day.

Why do American men make up the bulk of suicides in US?