A lot of us make a big deal over turning 30, but really, it's not that bad. It certainly doesn't mean that your life is over, as long as you're a man that is. If you're a woman, then, yeah, you're done. According to a new study, the average man doesn't start feeling old until he hits age 58. The average woman starts feeling old at age 29. That means it literally takes twice as long for men to feel old.