Life doesn't begin at 40, a YouGov survey has found – it kicks off at 45. Although traditionally, life after 40 was said to be more comfortable and relaxed, it appears you'll now have to wait another five years to experience that happiness. Of course, you should take any sweeping pronouncements about collective happiness with a pinch of salt, but it made us wonder – when do you feel your life began (and we won't accept the answer "at birth")? At what age did you begin to feel comfortable in your career or family life? Was there a moment when you suddenly found life more manageable, or an age when you felt confident in your decisions? Tell us when you feel your life really started, or let us know why you think it hasn't yet.