Sara Sidner was traveling to Israel to cover the ongoing war for CNN this past fall when she was told a recent mammogram needed to be followed up with a biopsy when she returned back home. That biopsy revealed the lump she noticed was cancerous and had progressed to stage 3. "When I got the news, I didn't tell anybody, not even my mother or husband or sisters or friends," she recalls. "I just needed to process it."

Since her diagnosis, she has not missed a day of work, including hosting the red carpet of CCN Heroes taking place two days after she started chemotherapy, and hosting a New Year's Eve special until 2am. "I am fatigued and I am slower, and I have to be more thoughtful about how I take care of myself." But she's not going to stop working any time soon.

She still considers herself a private person, and talking about her health so openly is not something she is comfortable doing, but knew it would be hard to hide from the cameras. "The bald truth is my hair's coming out. If I'm having a bad hair day, I know about it. If I'm having a good hair day, I also know about that."

"I'm living and I'm loving living because I know it can be short," she says. "I don't know how this is going to end ... [but] we have the ability to feel joy at any point as long as we're breathing."

Read more of Sidner's story here.