When you're a kid, age 33 sounds like it's SO OLD. When you're older, you'd kill a man to feel young again like you did at 33.

According to a survey by a British website called Friends Reunited, age 33 has been voted as the HAPPIEST YEAR of your life by people over 40.

They agreed 33 is when you're mature but still energetic and fun, your career has taken shape and your family life starts to come together.

Plus, you're still hopeful, not full-on cynical like someone older.

70% of people over 40 said 33 was their best year. 16% picked one of their childhood years...only 6% picked one of their college years.

(New York Daily News)