Collegen breakdown is a big problem for those under chronic stress...ie the cause of adrenal fatigue. High cortisol levels from chronic stress is the trigger to break down collegen for energy.
This is why we don't have any finger prints. People with adrenal fatigue would make great burglars.
I was discussing Adrenal Fatigue with my optometrist one day and he mentioned that floaters are from collegen breakdown.