Your immune system is working for you 24/7 — but most people don’t understand how it actually functions or how to support it.

In this episode of Jonty & The Doc, we break down immunity in the simplest way possible — from how your body defends itself, to what really impacts your ability to stay healthy.

We cover:
The difference between innate vs adaptive immunity
Why sleep is more important than you think
The real role of vaccines (and how age changes the equation)
How stress, travel, and overtraining affect your immune system
Nutrition basics that actually support immunity
Simple daily habits that make a long-term difference

This is not about hacks or shortcuts - it’s about understanding how your body works and making better decisions every day.

If you’ve ever wondered why you keep falling sick, feeling run down, or struggling with energy — this episode will change how you think about your health.

Your immune system is working for you 24/7 &mdash; but most people don&rsquo;t understand how it actually functions or how to support it.
In this episode of Jonty &amp; The Doc, we break down immunity in the simplest way possible &mdash; from how your body defends itself, to what really impacts your ability to stay healthy.
We cover:
<ul>
<li aria-level="1">The difference between innate vs adaptive immunity</li>
<li aria-level="1">Why sleep is more important than you think</li>
<li aria-level="1">The real role of vaccines (and how age changes the equation)</li>
<li aria-level="1">How stress, travel, and overtraining affect your immune system</li>
<li aria-level="1">Nutrition basics that actually support immunity</li>
<li aria-level="1">Simple daily habits that make a long-term difference</li>
</ul>
This is not about hacks or shortcuts - it&rsquo;s about understanding how your body works and making better decisions every day.
If you&rsquo;ve ever wondered why you keep falling sick, feeling run down, or struggling with energy &mdash; this episode will change how you think about your health.

What does it really take to live well for longer?

Jonty & The Doc is a podcast about longevity, performance, and the science of healthy aging. Hosted by physician Dr. Marcus Ranney and legendary international cricketer Jonty Rhodes, the show explores how the body and mind change over time - and what we can do to stay strong, active, and resilient for years to come.

Blending medical insight with real-world athletic experience, the podcast breaks down the habits, science, and mindset behind living a longer and healthier life. From movement and recovery to nutrition, mental fitness, and longevity research, each episode brings practical insights that help you rethink aging.

If you’re interested in healthspan, performance, and building a body and brain that thrive over time, Jonty & The Doc brings together expert knowledge and lived experience to decode the future of healthy living.

What does it really take to live well for longer?
Jonty &amp; The Doc is a podcast about longevity, performance, and the science of healthy aging. Hosted by physician Dr. Marcus Ranney and legendary international cricketer Jonty Rhodes, the show explores how the body and mind change over time - and what we can do to stay strong, active, and resilient for years to come.
Blending medical insight with real-world athletic experience, the podcast breaks down the habits, science, and mindset behind living a longer and healthier life. From movement and recovery to nutrition, mental fitness, and longevity research, each episode brings practical insights that help you rethink aging.
If you&rsquo;re interested in healthspan, performance, and building a body and brain that thrive over time, Jonty &amp; The Doc brings together expert knowledge and lived experience to decode the future of healthy living.

Jonty & The Doc

Why You Keep Falling Sick (And How to Fix It) | Jonty & The Doc

You asked. Jonty Rhodes and Dr Marcus Ranney answered.

In this special 12th Man edition of Jonty & The Doc, we hand the conversation over to the audience for an Ask Me Anything covering everything from nutrition and strength to sleep, supplements, ageing — and, naturally, a little cricket.

What order should you eat the food on your plate? Is strength or coordination more important for longevity? Can you outrun a bad diet? Which health metrics are actually worth tracking? And what does Jonty look for when judging the fittest players in cricket?

In this episode:
Does the order in which you eat your food actually matter?
• How to reduce the glucose impact of a carb-heavy meal
• Strength vs coordination for longevity
• Why muscle matters far beyond aesthetics
• The biggest fitness and longevity myths Jonty and Marcus want people to stop believing
• Why you can’t “outrun a bad diet”
• What Marcus thinks about Urolithin A and new longevity supplements
• How Jonty’s relationship with competition has changed with age
• Why Jonty now focuses on process rather than performance
• The health metrics Jonty actually tracks
• Why Marcus wishes we could track brain health more effectively
• How their sleeping habits have evolved
• Marcus’s 3–2–1 rule for better sleep
• What “fitness” actually means inside an IPL team
• The fielders who have impressed Jonty most over the years

It’s a slightly different Jonty & The Doc — driven entirely by the questions you want answered.

And if there’s something you want Jonty and Marcus to tackle in the next 12th Man, leave your question in the comments.

Watch the full episode on the @smartupivm YouTube channel and subscribe for more conversations about health, fitness and living better for longer.

You asked. Jonty Rhodes and Dr Marcus Ranney answered.
In this special 12th Man edition of Jonty &amp; The Doc, we hand the conversation over to the audience for an Ask Me Anything covering everything from nutrition and strength to sleep, supplements, ageing &mdash; and, naturally, a little cricket.
What order should you eat the food on your plate? Is strength or coordination more important for longevity? Can you outrun a bad diet? Which health metrics are actually worth tracking? And what does Jonty look for when judging the fittest players in cricket?
In this episode:
<ul>
<li>Does the order in which you eat your food actually matter? &bull; How to reduce the glucose impact of a carb-heavy meal &bull; Strength vs coordination for longevity &bull; Why muscle matters far beyond aesthetics &bull; The biggest fitness and longevity myths Jonty and Marcus want people to stop believing &bull; Why you can&rsquo;t &ldquo;outrun a bad diet&rdquo; &bull; What Marcus thinks about Urolithin A and new longevity supplements &bull; How Jonty&rsquo;s relationship with competition has changed with age &bull; Why Jonty now focuses on process rather than performance &bull; The health metrics Jonty actually tracks &bull; Why Marcus wishes we could track brain health more effectively &bull; How their sleeping habits have evolved &bull; Marcus&rsquo;s 3&ndash;2&ndash;1 rule for better sleep &bull; What &ldquo;fitness&rdquo; actually means inside an IPL team &bull; The fielders who have impressed Jonty most over the years</li>
</ul>
It&rsquo;s a slightly different Jonty &amp; The Doc &mdash; driven entirely by the questions you want answered.
And if there&rsquo;s something you want Jonty and Marcus to tackle in the next 12th Man, leave your question in the comments.
Watch the full episode on the @smartupivm YouTube channel and subscribe for more conversations about health, fitness and living better for longer.

What Does Jonty Rhodes Actually Do to Stay Fit at 56? | Jonty & The Doc

Erectile dysfunction is often treated as an embarrassing bedroom problem. But what if it’s actually telling you something important about your overall health?

In this episode of Jonty & The Doc, Jonty Rhodes and Dr Marcus Ranney have an open conversation about erectile dysfunction, why it becomes increasingly common with age and why men shouldn’t be afraid to talk about it. Marcus explains that ED can have vascular, hormonal, neurological and psychological causes — and in some cases may be an early sign of a larger health issue.

In this episode:
Why erectile dysfunction becomes more common as men get older
• The connection between ED and cardiovascular health
• How diabetes, hypertension and high cholesterol can affect erections
• What declining testosterone does to the male body
• What andropause means
• Why erectile dysfunction isn’t always about performance anxiety
• The blood tests men can discuss with their doctor
• Why men often hesitate to speak about sexual health
• How sleep affects testosterone production
• The relationship between body fat, testosterone and estrogen
• Why strength training can naturally support testosterone
• The role of nutrition, healthy fats and micronutrients
• How smoking and alcohol affect blood vessels and sexual health
• Why small, sustainable lifestyle changes can make a difference

As Marcus explains, four out of ten men over 40 experience some degree of erectile dysfunction — yet the stigma surrounding the subject means many men still avoid talking about it.

The important thing is not to dismiss it, self-diagnose or immediately reach for a quick fix. Get tested, speak to a medical professional and understand what your body might be trying to tell you.

Because sometimes a problem that shows up in the bedroom can be a window into what’s happening everywhere else.

Watch the full episode of Jonty & The Doc on the @smartupivm YouTube channel.

Subscribe for more conversations with Jonty Rhodes and Dr Marcus Ranney about health, fitness, ageing and living better for longer.

Erectile dysfunction is often treated as an embarrassing bedroom problem. But what if it&rsquo;s actually telling you something important about your overall health?
In this episode of Jonty &amp; The Doc, Jonty Rhodes and Dr Marcus Ranney have an open conversation about erectile dysfunction, why it becomes increasingly common with age and why men shouldn&rsquo;t be afraid to talk about it. Marcus explains that ED can have vascular, hormonal, neurological and psychological causes &mdash; and in some cases may be an early sign of a larger health issue.
In this episode:
<ul>
<li>Why erectile dysfunction becomes more common as men get older &bull; The connection between ED and cardiovascular health &bull; How diabetes, hypertension and high cholesterol can affect erections &bull; What declining testosterone does to the male body &bull; What andropause means &bull; Why erectile dysfunction isn&rsquo;t always about performance anxiety &bull; The blood tests men can discuss with their doctor &bull; Why men often hesitate to speak about sexual health &bull; How sleep affects testosterone production &bull; The relationship between body fat, testosterone and estrogen &bull; Why strength training can naturally support testosterone &bull; The role of nutrition, healthy fats and micronutrients &bull; How smoking and alcohol affect blood vessels and sexual health &bull; Why small, sustainable lifestyle changes can make a difference</li>
</ul>
As Marcus explains, four out of ten men over 40 experience some degree of erectile dysfunction &mdash; yet the stigma surrounding the subject means many men still avoid talking about it.
The important thing is not to dismiss it, self-diagnose or immediately reach for a quick fix. Get tested, speak to a medical professional and understand what your body might be trying to tell you.
Because sometimes a problem that shows up in the bedroom can be a window into what&rsquo;s happening everywhere else.
Watch the full episode of Jonty &amp; The Doc on the @smartupivm YouTube channel.
Subscribe for more conversations with Jonty Rhodes and Dr Marcus Ranney about health, fitness, ageing and living better for longer.

4 in 10 Men Over 40 Experience This | Jonty & The Doc

What happens when you reach the stage of life where your body is changing, your children still need you — and your parents are getting older too?

In this episode of Jonty & The Doc, Jonty Rhodes and Dr. Marcus Ranney explore what they call “The Middle Zone” — the period where you find yourself balancing your own health, family, career and the growing responsibility of caring for ageing parents.

Jonty gets personal about the changes he’s noticed in his own body, losing his father and watching his mother live with dementia, while Marcus breaks down some of the practical steps we can take to protect our own health and help our parents age better.

In this episode:
What “The Middle Zone” of life actually means
• How our bodies begin changing as we get older
• Why testosterone levels can decline with age
• Why being physically fit doesn’t necessarily mean you’re healthy
• The health checks we often put off for too long
• The emotional reality of watching your parents grow older
• Why movement, muscle and purpose become so important in later life
• How Jonty saw his father’s mobility decline
• Jonty’s experience of his mother living with dementia
• Why protein and resistance training matter for ageing parents
• What polypharmacy means and why medications should be reviewed
• Why vaccinations become increasingly important with age
• The conversation around creatine, NMN, NAD and other supplements
• Simple ways to encourage ageing parents to move more
• Why spending time with your parents matters just as much as helping them stay physically healthy

For many of us, there comes a point when the relationship with our parents begins to change. The people who once looked after us may gradually start needing our help instead.

And while we can’t stop ageing, there are things we can do — for ourselves and for the generation above us. As Marcus reminds us in this episode, it’s never too late to start.

Watch the full conversation and let us know in the comments: what’s one thing you’ve started doing differently as you — or your parents — get older?

Subscribe to @smartupivm for more episodes of Jonty & The Doc with Jonty Rhodes and Dr. Marcus Ranney, exploring health, fitness, ageing and how to live better for longer.

What happens when you reach the stage of life where your body is changing, your children still need you &mdash; and your parents are getting older too?
In this episode of Jonty &amp; The Doc, Jonty Rhodes and Dr. Marcus Ranney explore what they call &ldquo;The Middle Zone&rdquo; &mdash; the period where you find yourself balancing your own health, family, career and the growing responsibility of caring for ageing parents.
Jonty gets personal about the changes he&rsquo;s noticed in his own body, losing his father and watching his mother live with dementia, while Marcus breaks down some of the practical steps we can take to protect our own health and help our parents age better.
In this episode:
<ul>
<li>What &ldquo;The Middle Zone&rdquo; of life actually means &bull; How our bodies begin changing as we get older &bull; Why testosterone levels can decline with age &bull; Why being physically fit doesn&rsquo;t necessarily mean you&rsquo;re healthy &bull; The health checks we often put off for too long &bull; The emotional reality of watching your parents grow older &bull; Why movement, muscle and purpose become so important in later life &bull; How Jonty saw his father&rsquo;s mobility decline &bull; Jonty&rsquo;s experience of his mother living with dementia &bull; Why protein and resistance training matter for ageing parents &bull; What polypharmacy means and why medications should be reviewed &bull; Why vaccinations become increasingly important with age &bull; The conversation around creatine, NMN, NAD and other supplements &bull; Simple ways to encourage ageing parents to move more &bull; Why spending time with your parents matters just as much as helping them stay physically healthy</li>
</ul>
For many of us, there comes a point when the relationship with our parents begins to change. The people who once looked after us may gradually start needing our help instead.
And while we can&rsquo;t stop ageing, there are things we can do &mdash; for ourselves and for the generation above us. As Marcus reminds us in this episode, it&rsquo;s never too late to start.
Watch the full conversation and let us know in the comments: what&rsquo;s one thing you&rsquo;ve started doing differently as you &mdash; or your parents &mdash; get older?
Subscribe to @smartupivm for more episodes of Jonty &amp; The Doc with Jonty Rhodes and Dr. Marcus Ranney, exploring health, fitness, ageing and how to live better for longer.

Why You Keep Falling Sick (And How to Fix It) | Jonty & The Doc

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