#’Yes, 90-year-olds should still have sex!’

Dr. Ruth Westheimer, who turned 93 on Friday, has been a New Yorker for 60 years. She’s also a renowned sex therapist, prolific author, media personality, Holocaust orphan and onetime sniper for pre-state Israel’s secret military organization, the Haganah. No wonder the story of her life has been turned into a new one-woman play, “Becoming Dr. Ruth,” starring Tovah Feldshuh and running at Sag Harbor’s Bay Theater from June 4 to 27.

“To see myself … portrayed by Tovah in the play is a wonderful gift,” Westheimer told The Post.  “And I think that Mark [playwright Mark St. Germain] did a wonderful job of really portraying my background, my past. He had some of my diaries. It’s especially important now, with the anti-Semitism.”

The 4-foot-7 dynamo spoke to The Post from her Washington Heights home.

The Post: How has life been during the pandemic?

Dr. Ruth: I belong to the endangered species, so I’m very careful. But I’ve been very busy. This semester I was teaching my class at Teachers College at Columbia on Zoom. And I’ve been working on an updated version of my 1993 book, “The Art of Arousal,” for October.

What keeps you going?

I just started to meditate for five minutes every day. I never thought that I would sit still for meditation, but it’s been my newfound salvation for a busy life. I’m also on the board of Fort Tryon Park and they just planted tulips in my name — they are short and vibrant! I also received an honorary doctorate from Ben Gurion University in April, after raising $129,000 for scholarships in psychology. Some of that will go to Druze girls in Israel, some of whom couldn’t go to school. That makes me happy as someone who didn’t have a high school diploma.

Right. You lost your parents in the Holocaust and were taken from Germany via kindertransport to Switzerland at age 10.

Not only that, but I was a sniper in the Haganah and, on my 20th birthday in Jerusalem, I was very badly wounded on both legs by a cannonball. I could have lost my legs, but luckily the surgeon fixed [them] and I was able to be a super good skier.

How do you stay so positive?

The reason that I can talk about joie de vivre, a zest for life, is because my first years of life were in a wonderful, loving family. I once did a study of the children who were with me in the orphanage, and we all made it — nobody committed suicide, or fell by the wayside … It’s because the first years of their lives, like mine, were in a loving family. And that helped them to survive. Of course nobody [else] became Dr. Ruth. Only me.

My experience of having been an orphan makes me stand up and be counted, to tell people to be grateful to be alive and to make something positive out of your life.

What do you think about the state of Jews today?

I worry about anti-Semitism and those who deny the Holocaust. And I’m very worried about people who have Holocaust fatigue. That’s one of the reasons why I’m on the board of the Museum of Jewish Heritage [a memorial to those who perished in the Holocaust].

How did a good Jewish girl became a sex therapist?

For Jews sex was never a sin, but an obligation — for a husband to satisfy his wife — period.  I realized I did not know enough and I just wanted people to know about contraception and STDs. My late husband [Manfred Westheimer, father of her two children] was very supportive of my career. He went with me to NBC  every Sunday night for 10 years when I did my “Sexually Speaking” program.  I didn’t know I would become so famous, but I wanted to do something to help strengthen family life.

Do strangers still come up to you and ask for sex advice?

Very often. I’ll go with them to a corner and answer it if I can, or suggest a psychiatrist or medical specialist. There’s no such thing as a quick fix. People have to become much more sexually literate. There’s still a lot of things to know about and to learn about. That’s for my next book.

Should 90-year-olds still have sex?

If they have a good partner, they should have sex. If you don’t have a partner, they should satisfy themselves. Period. There is no age limit.