http://www.mmafighting.com/2016/12/6/13854316/dana-white-cris-cyborg-ufc-featherweight-title-fights
"...I was in treatment for 10 days with Dr. Ulisseia. I was in observation because I was feeling sick all the time.
You can see that I give no interviews after the fight. I told UFC Brazil PR Lilian (Caparroz) that I wanted to cancel all my interviews and couldn’t travel. After all that, at home, I decided I would not fight at this weight anymore, that I would only fight at my division. And only with 12 weeks’ notice. For my last fight, they told me eight weeks before.
I got a call from the UFC offering me another catchweight fight, and I said I would not fight at this weight anymore. I needed a break to get my health back to normal because my body was weak, I was anemic.
After that, they invited me to fight again, but this time at my weight and for the belt, but with 10 weeks’ notice. Knowing that I was recovering, like I said, I told them I can fight anyone in March, but I need to take care of my body, and no mention of the fact that I’m dealing with severe depression and can’t have another brutal weight cut like before. This decision is more important than the belt or the division, I’m thinking about my health."