Stewart spoke to her dermatologist on "The Martha Stewart Podcast" about the treatments she's done. "I don't think a lot about age, but I don't want to look my age at all," Stewart said. In addition to cosmetic treatments, Stewart credits exercise and a healthy diet for helping her look youthful. "I don't think a lot about age, but I don't want to look my age at all," Stewart said. Advertisement"I just eat really well and I watch what I eat, and that's really the secret," she said on the podcast.

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