Shannen Doherty has proved to be an inspiration time and time again as she has documented her battle against cancer since she began her fight and her recent Instagram posts are no exception.
The actress took to Instagram on Wednesday, Jan. 4, to share a video of her staying upbeat and actually dancing to aerobics even while her radiation treatments have made her so tired.
"Radiation is tiring. It builds up within you and sometimes one just struggles to keep their eyes open. You can see how tired I am here but I'm still moving!!" she captioned the video. "Any movement is so good during treatment, not just for the body, but for your mind as well. #cancerslayer."
Later, Doherty posted a photo next to her radiation therapy machine named "Maggie."
The former Beverly Hills, 90210 star also revealed via Twitter that she is doubling up her radiation treatments in an effort to speed up the process.
Doherty was diagnosed with breast cancer in 2015 and she announced last summer that the cancer had spread.