75 years old. After my second Cortisone shots in my knees for osteoarthritis in 2024 I started focusing on producing synovial fluid in my knees with lower gearing to get more spinning on my rides and taking Microlactin. I have been doing much much better with my knees and my hands, wrists and back. Knee issues have sharply dropped and it is a rare rather than common issue for me cycling.