"She fought so hard, but in the end, we had to make the heartbreaking decision to let her go," Elise Caldarola told Newsweek.

Try this easy walking workout with fitness expert Denise Austin in your own home to burn calories and work on your cardiovascular system. Try this easy walking workout with fitness expert Denise ...

Enjoy this low-impact, easy interval walking working with fitness expert Denise Austin to boost your heart rate and metabolism from your own home. Enjoy this low-impact, easy interval walking working ...