If you're having trouble finding motivation today to go for a run or get your workout in - this might help.
Amputee athlete Jacky Hunt-Broersma just completed 104 marathons in 104 days.
Yes, 104 marathons with a carbon-fiber prosthesis.
The 46-year-old lost her left leg below the knee to a rare cancer.
Every day since January 17, she has done 26.2 miles either outside near her home in Gilbert, Arizona, or on a treadmill.
Last month, a British runner did 101 marathons in 101 days.