Dena Battle, a kidney cancer patient advocate, used to worry incessantly about cancer. Then, her husband was diagnosed.

A former world champion triathlete, Siri Lindley, 52, lives with her wife in Longmont, Colorado. She was treated for acute myeloid leukemia.

Mark Hoffman, 57, who has chronic lymphocytic leukemia, learned how to ask a question that may have saved his life.

A family physician diagnosed with chronic lymphocytic leukemia, Brian Koffman cofounded the CLL Society. He lives in Claremont, California.

Doreen Zetterlund, 59, lives in Southern California. She has chronic lymphocytic leukemia.

Rachel Slater insists that the hardest part about going to Harvard was getting in — if you don’t count her two bouts with brain cancer.

Kelly Shanahan, MD, 61, is a wife, mother, daughter and doctor living with metastatic breast cancer in South Lake Tahoe, California.

Sonia Dolinger runs a meal delivery business and fundraises for cancer research. She has chronic lymphocytic leukemia.

Deltra Kroemer, 35, lives in Waterbury, Connecticut, with her five children. She has Stage IV breast cancer.

Siri Lindley, 51, a former world-class triathlete, lives with her wife in Longmont, Colorado. She was treated for acute myeloid leukemia.