Throughout her battle with breast cancer, "Beverly Hills, 90210" star Shannen Doherty has been open and honest about the treatment and recovery process. In an effort to give her fans and followers an inside look at what it's really like to fight the disease, the 45-year-old actress has documented each and every step of the way on her Instagram account - including her super-intense workouts.
Since beginning her treatment for breast cancer, Doherty has posted numerous videos of herself working out with her trainer, Neda Soderqvist, founder of JÄM Malibu. The videos show her conquering the fast-paced JÄM workouts, which combine high-intensity dance and cardio moves - and in a recent interview with People Now, Doherty's celeb BFF, Sarah Michelle Gellar, confirmed the workouts are just as intense as they look.
"It is a regular routine for her," Gellar told People Now of Doherty's JÄM classes. "The class is so hard! Honestly I can only do it maybe twice a month."
And when she does join Doherty, Gellar admits she can hardly keep up (as you can see in the above video from Doherty's Instagram): "I'm the one on the floor that's like, 'I can't do this anymore! Is this class over? Oh my God, she's still going!'" Gellar continued. "She is an incredible overcomer."
Consider this further proof that Doherty is a total #cancerslayer.
Watch the full clip from People Now below.