Menu
Sign In Search Podcasts Libraries Charts People & Topics Add Podcast API Blog Pricing
Podcast Image

Health Report

Does exercise lower your biological age?

05 Jun 2026

Transcription

Transcript generated automatically by AI and may contain errors.

Chapter 1: What is the main topic discussed in this episode?

0.031 - 5.618 ABC Listen

ABC Listen. Podcasts, radio, news, music and more.

0

8.021 - 11.686 Norman Swan

So you're a big exerciser. What are you up to today, Priya?

0

12.246 - 19.476 Priya Alexander

Oh, today's not a good day because I've been here with you. Oh, really? Well, look, I've walked to the tram stop both ways.

0

19.936 - 20.597 Norman Swan

Oh, that's pretty good.

0

20.897 - 27.726 Priya Alexander

Yeah, there's some movement of my body. But look, yesterday I did a Pilates class. The day before that I did my cardio tennis, which you know I love.

28.077 - 30.199 Norman Swan

Yeah, and I'm terrified you're going to invite me along to it.

30.399 - 33.302 Priya Alexander

I've invited you. You've not said yes yet.

33.462 - 38.466 Norman Swan

No, I deliberately don't tell you when I'm in Melbourne. It feels like that.

38.886 - 39.947 Priya Alexander

It feels like that.

Chapter 2: How does exercise influence biological age?

195.241 - 202.028 Norman Swan

a vaccine against this particular form of Ebola as quickly as possible. So there's reasonable optimism that that will actually happen.

0

202.868 - 216.651 Priya Alexander

And I guess the only other update in this space is that the federal government has committed to $5 million in support to the global response. And so hopefully that is going to help things on the ground. But still a very worrying time for Congo and its neighbouring countries.

0

217.593 - 226.227 Norman Swan

And another study suggesting quite disturbing levels of kids using AI chatbots for their mental health systems.

0

226.848 - 236.563 Priya Alexander

So this has been published in JAMA Pediatrics and it's used US adolescents and adults. So it's quite a broad age range, 12 to 21.

0

236.724 - 258.363 Norman Swan

Yeah, what they did, it's not a huge study. They did a study of about 1,000 adolescents and inquired to look at what their AI usage was in association with mental health issues. Then they grossed it up. If that was true for 1,000 kids... how many children or young people would be consulting at a national level in the United States.

258.944 - 268.448 Norman Swan

And it turned out to be millions, you know, if the original data were correct and it was extrapolated to the whole population. But nonetheless, there was significant usage even in the small sample.

268.428 - 278.25 Priya Alexander

So almost a fifth of the people surveyed reported using AI for mental health reason for advice. And that was up about 50% from the year prior.

Chapter 3: What are the proposed changes to abortion access in Australia?

278.471 - 302.938 Priya Alexander

So the use is certainly escalating. Over 40% of the Norman were doing it monthly or more often. And the people who were doing this highest, who were going onto a chatbot and using it for mental health advice, the highest use was amongst those who were 18 to 21, women or females, and those who had spoken with their physician in the past six months about their mental health.

0

302.958 - 305.742 Norman Swan

So it's not as if they weren't seeing somebody for assistance.

0

305.975 - 311.403 Priya Alexander

Yes, they were seeing somebody, but they also turned to the chatbot as well.

0

311.763 - 328.928 Norman Swan

And what we know about chatbots is that they try and be nice to you. And although there are guardrails against self-harm, there have been some notorious examples where somebody's learned to get around the guardrails and the AI chatbot hasn't actually encouraged them to self-harm.

0

329.819 - 347.845 Priya Alexander

I think it's deeply concerning because we've covered and we can link these episodes in the show notes. We have done a little bit on the use of chatbots for mental health, for health advice, how safe they are. And it really can put people in troubling situations. And I think for me, when I read this, I thought...

347.825 - 362.931 Priya Alexander

I have a lot of these patients in my room and without the oversight of a psychologist or a parent, because a lot of these people did not disclose it to anybody, not their doctor, not a friend, not a parent, that's what makes me really nervous.

363.451 - 380.408 Norman Swan

So just something to be alert for. And then a troubling story about the removal of a drug, not entirely, but partly, for women who have breast cancer. The brand name is Zolidex. The actual drug is called gocerilin. And it blocks oestrogen.

Chapter 4: What impact do changes in bulk billing have on Aboriginal health services?

380.448 - 382.793 Norman Swan

And it's also used in endometriosis.

0

383.87 - 404.697 Priya Alexander

Yes. So this is a drug that I think people would know it because it is used in prostate cancer, breast cancer, and for some patients with endometriosis. It does suppress the sex hormones. So if there is a tumor like a breast cancer that relies on estrogen to actually grow, if you block the estrogen, it can help reduce the recurrence of breast cancer.

0

404.677 - 427.421 Priya Alexander

Endometriosis, where estrogen and the normal cycle can actually facilitate growth of this endometrial-like tissue outside of the endometrial lining, cause problems, pain for people. Cutting off the estrogen can actually really help people with symptoms. Now, what we're talking about is AstraZeneca is the company. They have this drug, Zoladex, and it comes in two doses.

0

427.922 - 433.688 Priya Alexander

There's a 3.6 milligram implant and there's a higher dose one, which is 10 milligrams. Is that correct?

0

433.668 - 438.215 Norman Swan

Yeah, sorry about 10 milligrams, and it's approved for men with prostate cancer.

438.235 - 460.795 Priya Alexander

This low-dose one, Norman, because what AstraZeneca have said is we are removing it off the PBS, we're removing it from the private market in Australia, so it will not be available, the low-dose one, 3.6 milligrams, to anybody because of commercial reasons. The lower dose pen is the one that women will often use for breast cancer. It's currently on the PBS for people with endometriosis.

460.815 - 470.56 Priya Alexander

There's eligibility criteria, but the lower dose one is the one that is for a wider range of uses. The higher dose one, which is going to remain, is predominantly in prostate cancer.

470.641 - 494.893 Norman Swan

So what the drug company has said, they'll have a free access service for a few months after, for a while after they remove the drug in November of this year. And they're going to apply for PBS approval for the larger dose version for women with breast cancer and endometriosis. So I spoke to AstraZeneca about this because there's been some reports that this is actually punishment drugs.

494.873 - 500.665 Norman Swan

to Australia for its pricing policy through the Pharmaceutical Benefits Advisory Committee.

Chapter 5: What alarming trends are emerging with AI chatbot use among adolescents?

1168.414 - 1177.403 Dr. Nisha Cott

Taking away legal abortion rights will not reduce the number of abortions that happen. It will only reduce the safety of abortions.

0

1177.383 - 1182.732 Priya Alexander

Dr. Naisha Cott, obstetrician and president of the Royal Australian New Zealand College of Obstetricians and Gynaecologists.

0

1182.972 - 1202.023 Norman Swan

On ABC Radio National, you're with Health Report. So Priya, this next story just suits you down to the ground, you know, because, you know, you're a fanatic exerciser. Oh, fanatic. Does it make you younger, is the question? No.

0

1202.476 - 1211.969 Priya Alexander

Well, that is the question. I wouldn't say fanatic exerciser though. No? I just, I really enjoy moving the body and I know I feel better when I do it. And now I have even more evidence that it's good for me.

0

1212.69 - 1233.338 Norman Swan

Well, you do from this paper, which is about biological age and physical activity. So there's a bit of explaining to do before we come to our guest, who's Andrea Meyer from National University of Singapore, about biological age. Now, anybody who's reading the stuff about longevity at the moment, You'll hear people saying, oh, I've been doing all this stuff.

1233.398 - 1248.203 Norman Swan

You know, Brian Johnson's the classic one. And I'm X number of years younger than my chronological age. There's lots of measures they use. But one of the core measures, I don't know how much Brian Johnson uses it, is based on what's called epigenetic clocks.

1249.144 - 1269.08 Norman Swan

So this gets a bit technical, but if you are interested in all this information about people making themselves younger than they actually are, Epidemic clocks are really worth understanding. So as we age, chemical reactions occur around the outside of the double helix of our genes and the DNA.

1269.461 - 1285.571 Norman Swan

So it's chemical reactions, if you like, on the outside there and on the inside too, but it's not mutations in our DNA. It's chemical reactions around the outside. They're called DNA methylation to be technical. Now, it happens fairly regularly in our genome that these reactions happen.

1286.112 - 1298.957 Norman Swan

And what's definitely known is that biological clocks, these epigenetic clocks, if you say my age is 35, in your case 34, but if my age... 39. You don't need to be honest.

Chapter 6: Why was the drug Zoladex withdrawn from the Australian market?

1990.939 - 2019.519 Professor Paul Torzillo

We wrote to the minister in November last year and had a response that indicated the department would be communicating with us and would... find some ways to make this work for us. Well, that didn't work. That didn't work. I've subsequently written again to the minister on the 28th of last month and I've spoken to the minister's office and there's been no response.

0

2019.619 - 2032.421 Professor Paul Torzillo

And I think around the remote sector, the communication from the Commonwealth has been pretty quiet lately. I think at the moment their intention is to go ahead with this.

0

2032.441 - 2038.05 Norman Swan

Now, is the sector behind you here, Paul, the National Aboriginal Community Controlled Health Organisation and so on?

0

2038.992 - 2065.174 Professor Paul Torzillo

Look, they've been negotiations between NACCHO and the department and the minister's office. I'm not aware about where those arrangements are at the moment. I mean, our... Information is at the moment that what's been proposed is going ahead. So I don't think the negotiations have made a difference to that.

0

2066.476 - 2071.744 Norman Swan

Well, thanks for coming on the Health Report, Paul. We will ask the Minister's Office for a response and monitor it accordingly.

2072.325 - 2074.128 Professor Paul Torzillo

Thanks very much for your time. I appreciate it.

2074.509 - 2084.164 Norman Swan

And Paul Terzillo is Professor of Respiratory Medicine at Royal Prince Alfred Hospital in Sydney, the University of Sydney, but he's also Medical Director of Inunpa Health Council in Alice Springs.

2084.482 - 2093.13 ABC Listen

So what's in the mailbag?

2094.032 - 2097.985 Priya Alexander

So we did a big deep dive into diphtheria last week.

Comments

There are no comments yet.

Please log in to write the first comment.