The 65-year-old singer admits she had a facelift in the early 90s but did not "panic" about her decision which has led to it "holding up well".
She said: "I was careful about who I went with. I looked around, I interviewed. For me, it wasn't just a madness. That does happen, panic sets in, and people make bad decisions. But not me, I did my homework.
"There were places I went to that were really scary and I ran out."
The Blondie star believes she would have had a facelift even if she wasn't a celebrity because it made her feel better about herself.
She added: "I think I'd been very depressed about myself, I might not have done it. But it gave me a certain encouragement and satisfaction."
Debbie now likes to look after herself and thinks it is important as a woman to consider getting old and what she can do to stop it.
She told Observer Food Monthly: "Women just have a more rigorous time physically than men. It's a challenge.
"Sometimes I would love to eat a whole pizza. But then I follow it through in my head. You eat the pizza and then you go home and feel rough about yourself. You're just going to regret it. I don't kid myself about that."
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