Once abandoned at a Los Angeles animal shelter, Nana the pit bull is now spreading awareness about how wonderful her often-maligned breed can be.

Two years ago, medical student Stephanie Doris agreed to foster Nana after finding her photo on the shelter's website. Back then, Nana was in bad shape — her teeth had been pulled out and her ears, which had become infected after a botched removal, were full of polyps and fungi. Vets also estimated that she had given birth to around 15 litters of puppies.

See also: Abused pit bull finds healing with cute outfits

"To this day, I cannot explain what sparked me to impulsively apply to foster her," Doris told the Huffington Post. "What I do know, though, is that it was one of the best decisions I have made."

About six months later, Doris decided to adopt Nana permanently.

Today, 10-year-old Nana lives a cozy life with Doris in Nevada, where she loves to sleep, cuddle and move between her multiple doggie beds.

Doris and Nana are also active advocates for pit bull and senior dog adoption. Doris hopes that the lovable photos of Nana on her Instagram and Facebook pages will inspire would-be adopters to give older pit bulls a chance.

"There are so many Nanas out there just waiting to be loved and give love," Doris said.

A photo posted by Nanners (@journeyofnana) on Jul 15, 2015 at 2:37pm PDT

A photo posted by Nanners (@journeyofnana) on Jul 20, 2015 at 7:24pm PDT

A photo posted by Nanners (@journeyofnana) on Jun 28, 2015 at 7:01pm PDT

A photo posted by Nanners (@journeyofnana) on Jun 16, 2015 at 10:08pm PDT