Tiffany Senter is just 25, but she has already had three sets of lungs.
She was born with cystic fibrosis, a chronic genetic disease that causes sticky fluid to build up in several organs, including the pancreas, liver, kidneys and intestine.
But it is most devastating to the lungs, which the disease effectively drowns in this malfunctioning mucus.
By age 16, Tiffany was dying.
A lung transplant at 17 saved her life, but four years later her body rejected the new organs.
Tiffany got yet another shot at life, receiving a second pair of donor lungs at 23.
For now, Tiffany is breathing easier at last, but she still has to spend much of her time at the hospital, as cystic fibrosis has ravaged her other organs, too, and leaves her vulnerable to infections that could prove deadly.
But Tiffany keeps her spirits up, with a little help from her idol, Marilyn Monroe, fixing her hair and make up to match the late starlet's exactly - all from her hospital bed.
Even more than her Marilyn, Tiffany looks up to the two organ donors whose lungs have kept her alive this long, and simply hold onto hope that these lungs will keep working as doctors say they won't be able to give her another pair.
Tiffany Senter (pictured) cystic fibrosis and has had two lung transplants (left) at just 25. Her third set of lungs is failing, but she hopes that medications will stabilize her enough to start doing make up professionally, including her signature Marilyn Monroe look (right)
Tiffany's grasp on life has always been a little tenuous.
When she was born, it was immediately clear Tiffany had severe cystic fibrosis. Doctors initially advised her parents to take their newborn home and enjoy the short time they would likely have with her, Tiffany told The Sun.
But they didn't give up on their daughter, and Tiffany didn't give up either.
Until age 14, Tiffany even went to school. But as her condition had continued to worsen and her lungs got weaker, it was too dangerous for her to be around other children whose common colds could be life threatening for Tiffany.
By age 16, things were dire.
Tiffany was transferred to Stanford University's hospital, where doctors told her that a lung transplant was her best option - her only option - for survival.
After nine months of feeling like she was trying to breath under water, a new pair of lungs became available for Tiffany. Her own lungs were functioning at just 20 percent of the capacity of healthy lungs.
Doctors removed Tiffany's lungs - which were nearly black and contorted with disease - and replaced them with the donor's, which had come from a young man, on the cusp of adulthood, who had died in a tragic accident.
Cystic fibrosis causes mucus to become thick and effectively drown and kill lungs like Tiffany's
For the last three months before her second transplant, Tiffany was confined to a hospital bed, hooked up to a machine breathing for her and a feeding tube
But he and his family had donated as many of his organs as possible, saving the lives of eight people - including Tiffany.
Soon after the operation, Tiffany's lungs were operating at 93 percent - almost as good as new. She was overjoyed.
And for four years, she got to live the life of adventure she'd dreamed of.
But then the unthinkable happened: Tiffany's body rejected the very organs that were
