Olivia Zhang founded Cancer Kids First (CKF) in 2019 at age fourteen after losing two loved ones to cancer. As CEO, she's grown CKF into the world's largest youth-led nonprofit in its field, with over 40,000 volunteers across eighty countries. The organization has initiated more than 200 events, donated 60,500 resources, and partnered with seventy-two hospitals, aiding 10,000 patients in twenty-two countries. Zhang received the 2023 Diana Legacy Award and Harvard First-Year Emerging Global Leader award. She has been featured in People, Yahoo News, Business Insider, CBS News, and more.