About one in 800 kids in the U.S suffers from a deformity known as sunken chest.
The condition can be devastating on a child's self esteem, but can also cause physical problems like breathing difficulties.
Now doctors want to use the magnetic force inside the body to correct the problem.
Daniel Radovich was born with a sunken chest and he had to undergo two long surgeries at age nine and fourteen.
Now surgeons are trying to fix the problem like orthodontists repair our kids’ teeth.
Surgeons attach the magnet to the child's breastbone through a small incision.
Another magnet is embedded in a plastic brace that kids wear under their clothing.
"We have a separate thing made specifically for each kid's deformity that he wears it here, and it's held on by magnetic force," says Dr. Michael Harrison from the University of California.
The attraction between the two magnets holds the brace in place, pulls the bones together, and fixes the problem.
It takes about three months to a year, depending on the deformity.