Six years after being diagnosed with B-cell ALL at 21, William Yank opens up about the physical changes of treatment, the emotional weight of constant care and the role hope plays in his survivorship.

After two relapses of acute lymphoblastic leukemia, Hannah Koepsell received CAR-T cell therapy. A pediatric oncologist explains why leukemia can return after treatment and how researchers are working to make CAR-T responses last longer.

After two relapses, CAR T-cell therapy and a stem cell transplant, William Yank is in remission. But infertility, mental health challenges and a changed sense of self followed him into survivorship.