Senior citizens, rejoice. While getting older has long been linked to higher cancer risk , new research suggests that after a certain age, the odds don’t just plateau — they may actually drop. “The implications of this story could be huge,” Dr. Dmitri Petrov , senior author of the paper and a biology professor at Stanford University, said in a statement . “Maybe aging has a beneficial side to it that we could harness for better therapies.” Traditionally, cancer rates climb sharply after 50,