Olivia Munn documented cancer journey for son to show him 'I tried my best' if she 'didn't make it'

Olivia Munn shared the heart-wrenching reason behind why she decided to document her cancer journey.

In 2022, the 43-year-old actress was diagnosed with Luminal B cancer, "an aggressive, fast moving cancer," in both breasts. After privately battling the disease, she announced her breast cancer diagnosis and revealed that she underwent a double mastectomy in a March Instagram post.

During a Thursday interview with "Good Morning America," Munn recalled that her first thought was of her son Malcolm...