According to a new survey, the happiest age in a man's life is . . . 37. That's right: It's NOT in his 20s.

The survey found men feel happiest when they have some good career success and are starting a family . . . but not old enough that they're having health issues or approaching a midlife crisis.

The survey also found the top moments in a man's life that make them the happiest. Men could vote for up to three things on this list. Here are the results:

#1.) Becoming a parent, 43%.

#2.) Getting married, 35%.

#3.) Seeing his favorite sports team win a championship, 18%.

#4.) Buying a new house, 17%.

#5.) Proposing, 13%.

#6.) Graduating college, 9%.

#7.) Buying a new car, 7%.

More here --> Daily Mail