Celso Santebañes, better known as the Brazilian Human Ken, recently started chemotherapy for leukemia.

Santebañes was first admitted to the hospital on Jan. 15 and was recently diagnosed with leukemia. He is to remain in the hospital for 30 days, Ego reports, according to Midia News.

The man known as Brazilian Human Ken said he was concerned about the various side effects and whether or not his body will accept the treatment.

"Today I start a new cycle of my life," he said. "I am starting chemotherapy and I admit I'm a little concerned about some side effects, like hair loss, nausea, my body's rejection [of chemotherapy], among other things, but I am no longer concerned with the issue of aesthetics. For me that doesn't matter. What matter is my health now, and I will fight for it."

Santebañes said he has found support from family, friends and strangers, and even those who critique him are behind him. He said in life, he has conquered a lot and knows leukemia won't bring him down.

Looking ahead to the future, Santebañes said he believes he will come out of this a better person.

"Not that I was a bad person, but I will certainly be a far better person than I was ... because you start to value other things," he explained.

Santebañes has been told he has a high chance of beating the cancer, and though finding out he had leukemia was surprising, the doctor's words made him feel reassured.

"When I'm cured, I plan to release a book," he said. "Before, I struggled and did everything to be perfect. Today, God is showing me that there are other values. I think each day of treatment will be a great learning experience. I'll be a new person."