The Authentic Longevity Podcast

Why can’t you stop scrolling? 
Is your phone affecting the way your brain works? 
And can burnout actually look like productivity?

In this episode of the Authentic Longevity Podcast, Dr. Mark and Dr. Michele Sherwood explore the science behind dopamine, screen time, phone addiction, sugar cravings and burnout.

Dopamine plays an important role in motivation, reward and learning. But when everyday habits revolve around constant stimulation, they can influence how we think, eat, work and spend our time.

The doctors explain why you don’t need a dopamine detox, what they mean by dopamine retraining, and how to build healthier habits around food, exercise, sleep and technology.

They also discuss:

• How excessive screen time affects your habits and focus.
• Fast dopamine vs. slow dopamine.
• Why sugar cravings can be connected to childhood experiences and emotions.
• Cheat days vs. choice days and changing your relationship with food.
• How long it takes to establish new habits.
• Why burnout can sometimes disguise itself as productivity.
• Practical ways to reduce screen time and improve everyday routines.

You don’t need to eliminate dopamine. You need to understand your habits and make more intentional choices.

Listen in for practical insights from Dr. Mark and Dr. Michele Sherwood on building habits that support better health and longevity.

Learn more: https://functionaldr.com

Can you actually reverse aging, or is getting older simply inevitable?

On this episode of the Authentic Longevity Podcast, Dr. Mark and Dr. Michele Sherwood explore the science of biological aging and what influences how quickly your body ages.

From mitochondrial health and cellular repair to hormones, inflammation, fasting, and metabolic health, they break down the processes involved in aging and the lifestyle factors that may help support a younger biological age.

In this episode:

• Chronological age vs. biological age
• The science behind reversing biological aging
• How mitochondria influence cellular energy
• Inflammation, senescent cells, and cellular damage
• Autophagy and mitophagy: Your body’s cellular cleanup processes
• How fasting may support cellular repair
• Hormones, glucose, and insulin in biological aging
• The role of sleep, nutrition, and strength training
• What biological age tests can and cannot tell you
• Everyday habits that support longevity and healthspan

The goal isn’t just to live longer. It’s to preserve your strength, energy, and quality of life as you age.

Take a more proactive approach to your health.

Join Dr. Mark and Dr. Michele Sherwood for the Optimal Health Webinar:
https://www.functionaldr.store/webinar?utm_source=functionaldr.com&utm_medium=webinar_hero

Follow the Authentic Longevity Podcast for more conversations on reversing aging, biological age, functional medicine, and longevity.

Are the latest longevity hacks actually worth it, or are some of them just hype?

From NAD+ and peptides to cold plunges, saunas, molecular hydrogen, and antioxidant supplements, Dr. Mark Sherwood and Dr. Michele Sherwood examine some of today’s most talked-about biohacks on this episode of the Authentic Longevity Podcast.

Discover which interventions may offer real benefits, which could be overhyped, and which expensive treatments the doctors wouldn’t spend their money on. They also discuss practical ways to support longevity, including aerobic exercise, monitoring your blood pressure, nurturing relationships, and the often-overlooked role of forgiveness.

In this episode, you’ll discover:

• NAD+ and the debate around IV treatments and oral precursors
• Cold plunges, saunas, and molecular hydrogen
• Antioxidant supplements: helpful or overhyped?
• Ketones, nitric oxide, and peptides
• Which popular biohacks may not be worth the money
• Practical, often-overlooked habits that support longevity

Longevity isn’t about chasing every new trend. It’s about questioning the hype, understanding the evidence, and making informed decisions about your health.

Listen to the latest episode of the Authentic Longevity Podcast with Dr. Mark and Dr. Michele Sherwood for more conversations about biohacking, healthy aging, and living stronger and healthier for longer.

From a bullied child with hearing loss to the legendary bodybuilder and actor known as the Incredible Hulk, Lou Ferrigno’s story is one of resilience, discipline, and determination.

At 74, Lou is still training. He joins Dr. Mark Sherwood on the Authentic Longevity Podcast to discuss how his approach to bodybuilding has evolved, what it takes to maintain muscle as you age, and why the fundamentals of health still matter.

They discuss training through the decades, nutrition, sleep, supplements, the golden era of bodybuilding, and the mindset required to keep moving forward. Lou also reflects on the challenges he overcame, the lessons he’s learned, and why strength is about more than physical appearance.

In this episode:

• Lou Ferrigno’s journey from childhood adversity to bodybuilding legend
• The discipline behind building and maintaining muscle
• Adapting workouts as you age
• The role of nutrition, sleep, and consistency
• The truth about supplements and hard training
• Resilience, purpose, and staying committed to your goals

The Authentic Longevity Podcast, hosted by Dr. Mark Sherwood and Dr. Michele Sherwood, explores health, wellness, functional medicine, and what it takes to live a healthier, stronger life.

🎯 Want to take the next step toward better health?

Join our Optimal Health Webinar:
 https://functionaldr.com/media/webinar

Your smartwatch tracks your sleep. Your wearable measures your recovery. Your glucose monitor shows how your body responds to food. But are these numbers helping you get healthier, or are they creating more stress?

Dr. Mark Sherwood and Dr. Michele Sherwood break down the world of health wearables on this episode of the Authentic Longevity Podcast.

Discover what sleep tracking and heart rate variability (HRV) can tell you, how continuous glucose monitors offer insights into your body’s response to food, and why constantly chasing better numbers can become counterproductive.

They also explore the future of wearable health technology and how to use these tools without becoming overwhelmed by the data.

Listen in to learn how to make your health data work for you, not the other way around.

Subscribe to the Authentic Longevity Podcast for more conversations on health, longevity, and living your best life.

Lara Trump joins Dr. Mark and Dr. Michele Sherwood for a conversation about fitness, strength, healthy aging, and what it takes to make your health a priority.

Lara shares how she stays consistent with exercise while balancing a demanding life, why strength training matters for women as they get older, and how fitness supports both physical and mental health.

They also discuss raising healthy kids, handling public scrutiny, staying grounded through faith and prayer, and the habits that help Lara live with purpose.

Plus, Lara takes on a rapid-fire round covering workouts, weights vs. cardio, sauna, her favorite way to decompress, and what authentic longevity means to her.

What actually affects your testosterone levels? How do you know if your testosterone is low, which blood tests matter, and what should you know before considering testosterone therapy?

In this episode of the Authentic Longevity Podcast, Dr. Mark Sherwood and Dr. Michele Sherwood take a deeper look at testosterone, hormone decline, testing, therapy, male fertility, and the role of testosterone in women.

They discuss why total testosterone is only one part of the picture, the importance of free testosterone, SHBG and estradiol, and how stress, cortisol and environmental factors can affect testosterone production.

The conversation also covers testosterone administration, fertility concerns, alternatives to testosterone therapy, the risks of excessive testosterone use for bodybuilding, testosterone and women’s health, supplements, and the importance of monitoring key blood markers during hormone therapy.

Whether you’re trying to understand your testosterone levels, considering hormone therapy, or simply want to better understand how testosterone fits into long-term health, this episode breaks down the key questions and considerations.

Listen to the Authentic Longevity Podcast for more conversations with Dr. Mark and Dr. Michele Sherwood on hormones, longevity, functional medicine, metabolic health and strategies for living stronger, healthier and longer.

This podcast is for educational and informational purposes only and is not a substitute for individualized medical advice, diagnosis or treatment. Testosterone and hormone therapy should be discussed with a qualified healthcare professional.

Kevin Sorbo is best known for playing Hercules, but his story goes far beyond the screen.

In this episode of the Authentic Longevity Podcast, Dr. Mark Sherwood sits down with Kevin to talk about the health crisis that changed his life, his recovery from an aneurysm and four strokes, and how his approach to strength and fitness has evolved over the years.

They also discuss sleep, stress, resilience, faith, family, listening to your body, and the lessons that come from being forced to look at health from a completely different perspective.

For Kevin, authentic longevity comes down to being true to yourself. 
This is a conversation about what that looks like when life puts your strength, health, and perspective to the test.

Peptides are everywhere right now, but what actually works, what's FDA-approved, and what's still experimental?

Dr. Mark and Dr. Michele Sherwood break down the science, uses, and limitations of peptides, GLP-1s, retatrutide, BPC-157, TB-500, sermorelin, and tesamorelin, what they actually are, how they work, and where the real evidence stands.

Drawing from more than 25,000 patient conversations, this episode covers the "Wolverine Stack," the difference between FDA-approved and experimental compounds, why sourcing and quality matter, and what the current research does and doesn't support.

Subscribe to the Authentic Longevity Podcast for evidence-based conversations on functional medicine, longevity, and root-cause health with Dr. Mark and Dr. Michele Sherwood.

This podcast is for educational purposes only and does not replace individualized medical advice.

Dr. Mark and Michele reveal the “Gut Bombshell” — three common foods silently destroying health: gluten-containing grains, high-fructose corn syrup, and seed oils. These culprits disrupt gut bacteria, trigger leaky gut, and fuel inflammation, leading to fatigue, autoimmune issues, brain fog, and chronic pain. They unpack how America’s diet and government subsidies have magnified the problem, and share simple swaps to restore balance and vitality.

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