Yes, I used to have longer hair. I decided to go Pixie in my old age. It just fits. I used to have a 30cm SO Black Birkin. Lifting weights does NOT hurt my knees because I started with light weights and work with a trainer that stresses proper form. We also do other stability exercises. I've learned how to move properly. I also take a load of anti-inflammatory supplements, Glucosamine, turmeric, fish oil, etc. It's taken me close to two years of consistent, hard work to get this strong. I spend well more than a Birkin unit per year on training. And it's the best money I spend. Lifting has improved my posture, bone density, lowered my blood pressure and I go through life with a confidence and bad ass attitude I did not have before. My gym is NOT a vanity gym. People of all ages and body types are there in an encouraging environment. ETA: No knee replacements or cortisone shots.