I'm turning 45 in the fall, and was feeling pretty young with a husband 10 years younger, and kids 15 and 12. Then, in the last 2 years I've lost both grandmothers (86 and 90) and my mom (64). I think it was my mom, at her age, that made me feel really, really old, and close to the end of my life. Before that, age didn't bother me at all.