A study from the University of California at San Francisco found that the right diet, exercise, and low stress might actually help reverse the aging process.
The study applied a regimen of vegetable-heavy diet, frequent exercise, and stress management to all participants, no matter the health issue.
These lifestyle changes resulted in lengthening telomeres, the part of chromosomes that affect how cells age.
The telomeres grew by 10 percent in the group that made the healthy lifestyle changes.
Dr. Dean Ornish, who led study, said it's not the fountain of youth but it's a step in the right direction.
"We found that the more people change their lifestyle, the longer their telomeres got, at any age," Ornish explained. "Until now we thought that only telomeres could get shorter."
He said the human body has the capacity to begin healing itself with simple lifestyle changes.