The Texan model has also ruled out dabbling with cosmetic procedures such as Botox to hold back the hands of time.
In an interview with Good Housekeeping magazine, Hall said: "I am very against it. I think it looks silly - people with mean-looking eyebrows."
Reflecting on her own appearance, she said: "I am 58. That is pretty old, for God's sake. I look pretty good for my age, and I am enjoying that. But I smoke, I drink, I like wine, I love sun tanning, I drink coffee - I am doing all sorts of things I shouldn't do."
The former wife of Rolling Stones frontman Sir Mick Jagger also told how she feels much happier than she has in the past.
"I do, because I think you feel less stressed at my age. You are not so bothered - everything is water off a duck's back.
"It is something that happens with age - I am not bothered about anything. What will happen will happen."
And she praised her children for rallying around their father following the suicide of his long-term partner L'Wren Scott earlier this year, and attending the funeral.
Hall said: "They were so good, I was so proud of them. All the children went - just giving him a lot of love and support. It was very traumatic for the whole family.
"It is a horrible thing, suicide - you can never figure that out. We all got on really well, peace was reigning. It was a shock for the whole family, and Mick was just devastated - it was a big shock for him."
Hall, who was a contestant on BBC1's Strictly Come Dancing two years ago, also talked about her new boyfriend Armand Leroi, saying: "He is lovely and very clever and very handsome. I am really, really happy."
:: The full interview is in the September issue of Good Housekeeping magazine which is on sale tomorrow.