So says an article on Bromances:
The report argues the evolution of friendship has moved from the reserved 19th and 20th century model, in which men were more independently minded, to a 21st century interconnected world of the kind depicted in films such as “Wedding Crashers,” in which two friends openly profess their emotional reliance on each other.
It describes such dynamics as “fireteam friendships,” a basic unit of four or five friends who watch each others’ backs, and argues that men who are in closer contact with their friends are happier, healthier and wealthier.
When men marry, they don’t see their friends as often. In earlier times, married men had lodges, clubs and other places to hang out with other men. These are now discouraged or illegal. Married men seem more isolated down in a man-cave or garage these days. How does this affect their well-being?