Why are women so hard on themselves?

I have a friend that if Barbie was cast in a movie, this woman would get the part. She is tall, thin, and athletic. She is funny, fun to be around, and always laughing. She can wear those sleeveless tee shirts that if I wore I would end up in Glamour Magazine with my face blacked out and the caption "Don't Do This" under it. The other night, we were talking about what we've done this summer. She said that she's not enjoying her summer because she is out of shape and doesn't want to go to the beach because she doesn't like the way she looks. Now, this lady is gorgeous; I wouldn't know what to do with myself if I looked like her. I thought about it and I figure I have about 18 years to physically be able to do adventurous things without the help of a team of physicians, a hoyer lift and a home health aide to lug my pills around. I've realized that nobody is really looking at your body when you're having a great time, they are watching you having a great time and that's all. When I think about it, all Barbie probably ever did was wait around for Ken to come back from fishing, camping, hiking, boys night out, bar hopping, army training...