Olivia Munn says breast cancer treatment is 'exhausting' but she feels lucky

Olivia Munn, three years after a breast cancer diagnosis and double mastectomy, says ongoing medication can be "exhausting" and that she feels "lucky" to be alive.

Olivia Munn discussed her experience with breast cancer treatment in a CBS News Sunday Morning interview released March 29. Three years after her diagnosis and a double mastectomy, she described the medicines she takes as sometimes exhausting. She said she feels fortunate to be alive and is focusing on small, everyday moments with her family. What we know: - Munn was diagnosed with Luminal B breast cancer and underwent a double mastectomy, a partial hysterectomy and an oophorectomy. - She reported that postoperative medication has been tiring; in August she began taking Arimidex and said she still has years of treatment ahead. - Munn has said she feels "lucky" to be alive and has emphasized appreciating small moments with her children. Summary: Munn remains in ongoing cancer treatment and describes its effects as exhausting while expressing gratitude for being alive. She has indicated the treatment timeline will continue for years, and the situation is one of ongoing care.