• 43. Endocrine System Basics and Care w/ Dr. Claire Merrifield
    Nov 8 2025
    In this comprehensive discussion, Dr. Claire Merrifield delves into the intricacies of the endocrine system, explaining the structure and function of various glands and hormones. The conversation touches on the hormone production process, the interplay between the endocrine and nervous systems, and the impact of hormones on bodily functions. Key topics include thyroid health, cortisol levels, the role of stress, and hormone replacement therapies for both men and women. Dr. Merrifield also sheds light on common misconceptions related to hormonal health, emphasizing the importance of managing stress and maintaining a balanced lifestyle for overall well-being. Dr Claire Merrifield MBBS MRCGP PhD | Co-Founder & Medical Director, Selph Claire is a GP, microbiome researcher and trained mindfulness instructor who brings a rare blend of clinical experience, scientific expertise and real-world empathy to modern healthcare. She’s the Medical Director of Selph, and the heart of its mission: to help people take back control of their own health, with guidance that’s holistic, practical and grounded in science. Claire completed her medical training at Imperial College London, where she later undertook a PhD exploring the link between gut microbes and the immune system. Her research has focused on probiotics, nutrition, immunology and the prevention of chronic illness. As a GP, Claire has supported thousands of patients in understanding their bodies, navigating the healthcare system and making sustainable lifestyle changes — especially women’s health, burnout, and gut-brain connection. Claire is also a certified Breathworks Mindfulness instructor, adding depth and compassion to her clinical approach. With her unique ability to bridge science and everyday life, Claire is on a mission to make proactive healthcare more accessible, inclusive and empowering.Dr. Merrifield's Links:www.selph.co.uk https://www.linkedin.com/in/clairemerrifield/ https://www.instagram.com/selphhealthuk/ claire@selph.co.ukLearn More about Dr. Darian:Website: https://doctordarianparker.com/LinkedIn: https://www.linkedin.com/in/darianparker/Dr. Darian's Affiliates:Relax the BackRelax The Back® embraces a holistic approach for a healthier lifestyle grounded in 40 years of proven expertise. Live wellness is our commitment to helping you transform your routine, your space, and your life, with solutions that elevate your physical and mental well-being. Use this link: Relax the Back level up your well being.BlumakaRun better. Move smarter. Save 20%.Blumaka insoles are built for performance and sustainability, offering elite-level cushioning, grip, and durability with up to 85% recycled foam. Use code FSF20 for 20% off: https://blumakastore.myshopify.com/discount/FSF20Stick MobilityGet your flexibility back and prevent injuries with Stick Mobility. Training Sticks improve range of motion, muscle activation, coordination, and body awareness to build a strong foundation for better movement. Go to this Link or copy to your browser https://stickmobility.com/darian-parker and use the discount code: 1CEC828F154 to get 10% off of your purchase.Chapters:00:00 Introduction to the Endocrine System00:54 Hormones and Their Functions03:15 Brain's Role in Hormone Production05:31 Thyroid and Parathyroid Glands07:15 Gastrointestinal Hormones09:47 Kidneys and Adrenal Glands12:21 Sex Hormones and Fat's Role15:26 Thyroid Dysfunction and Weight Loss19:25 Optimizing Thyroid Function24:00 Medication Resistance and Hormone Myths28:42 Complexity of the Human Body31:05 Exploring Endocrine System Dysfunction and Heritability33:44 Understanding Cortisol: The Stress Hormone37:21 The Impact of Stress on Health and Wellbeing41:54 Inflammation and Aging: The Hidden Connection45:27 The Importance of Self-Care and Mindfulness52:29 Hormone Replacement Therapy: Estrogen and Testosterone
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    57 mins
  • Ep. 4 Trainer Talk Series - Know Your Worth for Pricing Your Fitness Services
    Oct 29 2025

    In this episode of our monthly trainer Talk Series, we discuss the sticky situation of pricing for fitness professionals. Why is this such a senstive subject for fitness professionals? How can fit pros better understand their value for their services? We answer these questions and more in this roundable discussion with some of our fitness colleagues.


    Hosts:

    Caroline and Julia’s Links:

    IG: Mobius

    Mobius Calendar: https://lu.ma/mobius

    Join the Mobius Waitlist: Mobius Waitlist


    Learn More about Dr. Darian:

    Website: https://doctordarianparker.com/

    LinkedIn: https://www.linkedin.com/in/darianparker/


    Dr. Darian’s Affiliates:

    Relax the Back

    Relax The Back® embraces a holistic approach for a healthier lifestyle grounded in 40 years of proven expertise. Live wellness is our commitment to helping you transform your routine, your space, and your life, with solutions that elevate your physical and mental well-being. Use this link: Relax the Back level up your well being.


    Blumaka

    Run better. Move smarter. Save 20%.
    Blumaka insoles are built for performance and sustainability, offering elite-level cushioning, grip, and durability with up to 85% recycled foam. Use code FSF20 for 20% off: https://blumakastore.myshopify.com/discount/FSF20


    Stick Mobility

    Get your flexibility back and prevent injuries with Stick Mobility. Training Sticks improve range of motion, muscle activation, coordination, and body awareness to build a strong foundation for better movement. Go to this Link or copy to your browser https://stickmobility.com/darian-parker and use the discount code: 1CEC828F154 to get 10% off of your purchase.


    Hyperice

    Grab your Hyperice gear and get 10% off using my affiliate link: https://tidd.ly/4noSOfW
    From percussion to compression, elevate your recovery like a pro.Discount applies at checkout.


    Riverside

    I use Riverside to record my podcast in studio-quality audio and video—right from my browser or phone. Whether you’re remote or in-person, it’s the easiest way to get crisp, professional results every time. Use my link to sign up for this awesome podcasting platform: https://riverside.sjv.io/QjEWnx



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    46 mins
  • 42. How the Best Trainers Maximize Client Relationships Outside the Gym w/ William Mulvaney
    Oct 13 2025

    In this conversation, Dr. Darian Parker and William Mulvaney explore what happens outside the training sessions and the powerful impact it creates for long term retention of clients. They discuss how building genuine connections with clients can lead to better accountability and success outside of training sessions. The importance of positive reinforcement, understanding clients as whole individuals, and the need for coaches to reflect on their own personalities and how they engage with clients are emphasized.


    Will Mulvaney is a founder, software engineer, and podcast host focused on improving lives through small changes (starting with his own).


    William's Links:

    https://www.youtube.com/@willpower_lifestylehttps://mygrooves.appwilliammulvaney.com


    Learn More about Dr. Darian:

    Website: https://doctordarianparker.com/

    LinkedIn: https://www.linkedin.com/in/darianparker/


    Dr. Darian's Affiliates:

    Relax the Back

    Relax The Back® embraces a holistic approach for a healthier lifestyle grounded in 40 years of proven expertise. Live wellness is our commitment to helping you transform your routine, your space, and your life, with solutions that elevate your physical and mental well-being. Use this link: Relax the Back level up your well being.


    Blumaka

    Run better. Move smarter. Save 20%.
    Blumaka insoles are built for performance and sustainability, offering elite-level cushioning, grip, and durability with up to 85% recycled foam. Use code FSF20 for 20% off: https://blumakastore.myshopify.com/discount/FSF20


    Stick Mobility

    Get your flexibility back and prevent injuries with Stick Mobility. Training Sticks improve range of motion, muscle activation, coordination, and body awareness to build a strong foundation for better movement. Go to this Link or copy to your browser https://stickmobility.com/darian-parker and use the discount code: 1CEC828F154 to get 10% off of your purchase.


    Hyperice

    Grab your Hyperice gear and get 10% off using my affiliate link: https://tidd.ly/4noSOfW
    From percussion to compression, elevate your recovery like a pro.Discount applies at checkout.


    Riverside

    I use Riverside to record my podcast in studio-quality audio and video—right from my browser or phone. Whether you're remote or in-person, it's the easiest way to get crisp, professional results every time. Use my link to sign up for this awesome podcasting platform: https://riverside.sjv.io/QjEWnx


    Show More Show Less
    44 mins
  • Ep. 3 Trainer Talk Series - Investment or Scam? Fit Pro Continuing Education
    Sep 24 2025

    In this episode of the "Trainer Talk" Series, our panel of fit pros dive into the controversial world of fitness professional continuing education. While staying educated and recertified is critical in our industry, the real question is: Are fit pros truly getting value from these educational opportunities...or are they just paying into a money grab? We break down the good, the bad, and the downright questionable side of continuing education, and what it really means for fit pros trying to grow their careers.

    Caroline and Julia's Links:

    IG: Mobius

    Mobius Calendar: https://lu.ma/mobius

    Join the Mobius Waitlist: Mobius Waitlist


    Learn More about Dr. Darian:

    Website: https://doctordarianparker.com/

    LinkedIn: https://www.linkedin.com/in/darianparker/


    Dr. Darian's Affiliates:

    Relax the Back

    Relax The Back® embraces a holistic approach for a healthier lifestyle grounded in 40 years of proven expertise. Live wellness is our commitment to helping you transform your routine, your space, and your life, with solutions that elevate your physical and mental well-being. Use this link: Relax the Back level up your well being.


    Blumaka

    Run better. Move smarter. Save 20%.
    Blumaka insoles are built for performance and sustainability, offering elite-level cushioning, grip, and durability with up to 85% recycled foam. Use code FSF20 for 20% off: https://blumakastore.myshopify.com/discount/FSF20


    Stick Mobility

    Get your flexibility back and prevent injuries with Stick Mobility. Training Sticks improve range of motion, muscle activation, coordination, and body awareness to build a strong foundation for better movement. Go to this Link or copy to your browser https://stickmobility.com/darian-parker and use the discount code: 1CEC828F154 to get 10% off of your purchase.


    Hyperice

    Grab your Hyperice gear and get 10% off using my affiliate link: https://tidd.ly/4noSOfW
    From percussion to compression, elevate your recovery like a pro.Discount applies at checkout.


    Riverside

    I use Riverside to record my podcast in studio-quality audio and video—right from my browser or phone. Whether you're remote or in-person, it's the easiest way to get crisp, professional results every time. Use my link to sign up for this awesome podcasting platform: https://riverside.sjv.io/QjEWnx


    Show More Show Less
    46 mins
  • 41. How Red Light Therapy Helps Fit Pros & Clients w/ John Graham Harper
    Sep 20 2025

    John Graham Harper is a former competitive athlete whose journey through sports and injury recovery led him to pioneer innovation in wellness technology. Having competed in rugby, CrossFit, and boxing, John faced multiple injuries — including damaged shoulders, a knee injury, and even the long-term effects of micro-traumas to the brain. These challenges inspired him to explore natural, non-invasive healing solutions, ultimately leading to the creation of Lumaflex.


    Today, John is the CEO of Lumaflex, a Miami-based company that has redefined portable red and near-infrared light therapy with flexible, durable, and waterproof devices designed for real-world performance and recovery. Lumaflex has quickly gained global recognition, earning nine international design and innovation awards including TIME Magazine’s Best Invention of 2023, the Fast Company Innovation by Design Award, and the ISPO Award for Excellence in Sports Recovery Innovation.


    John's Links:


    Website: www.lumaflex.com

    IG: @johngrahamfitness @lumaflex


    Linkedin:

    https://www.linkedin.com/in/john-graham-harper-168234163/

    https://www.linkedin.com/company/lumaflex-body-pro/?viewAsMember=true


    X:

    https://x.com/LumaflexBodyPro


    FB:

    https://www.facebook.com/johngraham.harper/ https://www.facebook.com/lumaflexbodypro


    Learn More about Dr. Darian:

    Website: https://doctordarianparker.com/

    LinkedIn: https://www.linkedin.com/in/darianparker/


    Dr. Darian's Affiliates:


    Relax the Back

    Relax The Back® embraces a holistic approach for a healthier lifestyle grounded in 40 years of proven expertise. Live wellness is our commitment to helping you transform your routine, your space, and your life, with solutions that elevate your physical and mental well-being. Use this link: Relax the Back level up your well being.


    Blumaka

    Run better. Move smarter. Save 20%.
    Blumaka insoles are built for performance and sustainability, offering elite-level cushioning, grip, and durability with up to 85% recycled foam. Use code FSF20 for 20% off: https://blumakastore.myshopify.com/discount/FSF20


    Stick Mobility

    Get your flexibility back and prevent injuries with Stick Mobility. Training Sticks improve range of motion, muscle activation, coordination, and body awareness to build a strong foundation for better movement. Go to this Link or copy to your browser https://stickmobility.com/darian-parker and use the discount code: 1CEC828F154 to get 10% off of your purchase.


    Hyperice

    Grab your Hyperice gear and get 10% off using my affiliate link: https://tidd.ly/4noSOfW
    From percussion to compression, elevate your recovery like a pro.Discount applies at checkout.


    Riverside

    I use Riverside to record my podcast in studio-quality audio and video—right from my browser or phone. Whether you're remote or in-person, it's the easiest way to get crisp, professional results every time. Use my link to sign up for this awesome podcasting platform: https://riverside.sjv.io/QjEWnx


    Show More Show Less
    46 mins
  • 40. Coaching Autistic Clients w/ Eric Chessen
    Sep 15 2025

    In this conversation, Dr. Darian Parker and Eric Chessen discuss the importance of fitness professionals understanding and working with clients on the autism spectrum. They explore the unique challenges faced by individuals with autism, the significance of empathetic communication, and the development of effective fitness protocols tailored to this population.


    Eric's Links:


    Website: https://www.autismfitness.com/

    Instagram: https://www.instagram.com/theautismfitness/?hl=en

    YouTube: https://www.youtube.com/TheAutismFitness


    Learn More about Dr. Darian:

    Website: https://doctordarianparker.com/

    LinkedIn: https://www.linkedin.com/in/darianparker/


    Dr. Darian's Affiliates:


    Relax the Back

    Relax The Back® embraces a holistic approach for a healthier lifestyle grounded in 40 years of proven expertise. Live wellness is our commitment to helping you transform your routine, your space, and your life, with solutions that elevate your physical and mental well-being. Use this link: Relax the Back level up your well being.


    Blumaka

    Run better. Move smarter. Save 20%.
    Blumaka insoles are built for performance and sustainability, offering elite-level cushioning, grip, and durability with up to 85% recycled foam. Use code FSF20 for 20% off: https://blumakastore.myshopify.com/discount/FSF20


    Stick Mobility

    Get your flexibility back and prevent injuries with Stick Mobility. Training Sticks improve range of motion, muscle activation, coordination, and body awareness to build a strong foundation for better movement. Go to this Link or copy to your browser https://stickmobility.com/darian-parker and use the discount code: 1CEC828F154 to get 10% off of your purchase.


    Hyperice

    Grab your Hyperice gear and get 10% off using my affiliate link: https://tidd.ly/4noSOfW
    From percussion to compression, elevate your recovery like a pro.Discount applies at checkout.


    Riverside

    I use Riverside to record my podcast in studio-quality audio and video—right from my browser or phone. Whether you're remote or in-person, it's the easiest way to get crisp, professional results every time. Use my link to sign up for this awesome podcasting platform: https://riverside.sjv.io/QjEWnx



    Chapters

    00:00 Introduction to Autism Fitness

    02:47 Eric's Journey into Fitness and Autism

    05:59 Understanding Autism Spectrum Disorder

    09:03 Common Challenges in Autism and Fitness

    11:52 The Importance of Communication in Training

    15:02 The Concept of Masking in Autism

    17:57 Developing Effective Protocols for Training

    21:06 The PAC Profile Methodology

    24:10 Motivation and Engagement in Autism Fitness

    26:27 Connecting Through Shared Interests

    28:56 The Importance of Communication in Coaching

    32:05 The Art of Coaching: Less is More

    36:04 Understanding Individual Needs in Training

    39:58 Contextualizing Fitness for Different Ages

    42:56 Final Thoughts on Working with Diverse Populations


    Show More Show Less
    48 mins
  • Ep. 2 Trainer Talk Series - Career Vs. Part Fitness Professionals
    Aug 27 2025
    In this episode of Trainer Talk, Dr. Darian Parker, along with co-hosts Julia Suozzi and Caroline Turnbull, engage in a rich discussion with personal trainers Maria Pearson and Robert Bricks Glover. They explore the differences between part-time and full-time trainers, the importance of longevity in fitness training, and the impact trainers have on their clients' lives. The conversation also delves into the challenges of burnout in the fitness industry, the stigma surrounding part-time trainers, and the significance of self-awareness in client relationships.Caroline and Julia's Links:IG: MobiusMobius Calendar: https://lu.ma/mobiusJoin the Mobius Waitlist: Mobius WaitlistLearn More about Dr. Darian:Website: https://doctordarianparker.com/LinkedIn: https://www.linkedin.com/in/darianparker/Dr. Darian's Affiliates:Relax the BackRelax The Back® embraces a holistic approach for a healthier lifestyle grounded in 40 years of proven expertise. Live wellness is our commitment to helping you transform your routine, your space, and your life, with solutions that elevate your physical and mental well-being. Use this link: Relax the Back level up your well being.BlumakaRun better. Move smarter. Save 20%.Blumaka insoles are built for performance and sustainability, offering elite-level cushioning, grip, and durability with up to 85% recycled foam. Use code FSF20 for 20% off: https://blumakastore.myshopify.com/discount/FSF20Stick MobilityGet your flexibility back and prevent injuries with Stick Mobility. Training Sticks improve range of motion, muscle activation, coordination, and body awareness to build a strong foundation for better movement. Go to this Link or copy to your browser https://stickmobility.com/darian-parker and use the discount code: 1CEC828F154 to get 10% off of your purchase.HypericeGrab your Hyperice gear and get 10% off using my affiliate link: https://tidd.ly/4noSOfWFrom percussion to compression, elevate your recovery like a pro.Discount applies at checkout.RiversideI use Riverside to record my podcast in studio-quality audio and video—right from my browser or phone. Whether you're remote or in-person, it's the easiest way to get crisp, professional results every time. Use my link to sign up for this awesome podcasting platform: https://riverside.sjv.io/QjEWnxChapters00:00 Introduction to the Fitness Industry Dynamics03:08 Personal Trainer Journeys: Part-Time vs Full-Time05:56 The Importance of Longevity in Training08:59 Measuring Impact: Part-Time vs Full-Time Training11:42 Burnout in the Fitness Profession14:48 The Stigma of Part-Time Trainers17:46 Finding Your Niche in Personal Training20:47 Self-Awareness and Client Relationships23:35 Balancing Client Load and Energy26:51 Reflection and Growth as Trainers30:48 Navigating Part-Time vs Full-Time Training34:12 The Future of Training: Balancing Passion and Business35:43 Understanding the Industry: Part-Time Trends40:09 Pricing Strategies in Personal Training42:39 The Value of Expertise vs Popularity
    Show More Show Less
    49 mins
  • 39. How Fitness Pros Can Support Clients with Irregular Work Shifts
    Aug 19 2025

    Lori Oliver, Co-Founder & CEO of The Inactive Company, a sleep performance brand dedicated to developing technology and tools that enhance rest and recovery for everyone. Its innovative sleep mask, Inactivators™, is a scientifically backed solution to improve sleep. She has spent over 25 years as a veteran in brand and product building, driving business for corporate, consulting, and entrepreneurial companies from global to grassroots.


    Jill MacRae is a marketing executive with over 25 years of experience in building businesses and brands across B2B, B2C, and non-profit sectors. She is the founder and principal of JMACRAE GROUP, a boutique consulting firm that advises and collaborates with companies to formulate and implement strategic initiatives for growth and sustainability. Additionally, she is a co-founder of The Inactive Company, a sleep performance brand dedicated to developing technology and tools that enhance rest and recovery for everyone. Its innovative sleep mask, Inactivators™, is a scientifically backed solution to improve sleep.


    Lori and Jill's Links:


    https://inactiveco.com/


    Learn More about Dr. Darian:

    Website: https://doctordarianparker.com/

    LinkedIn: https://www.linkedin.com/in/darianparker/


    Dr. Darian's Affiliates:


    Relax the Back

    Relax The Back® embraces a holistic approach for a healthier lifestyle grounded in 40 years of proven expertise. Live wellness is our commitment to helping you transform your routine, your space, and your life, with solutions that elevate your physical and mental well-being. Use this link: Relax the Back level up your well being.


    Blumaka

    Run better. Move smarter. Save 20%.
    Blumaka insoles are built for performance and sustainability, offering elite-level cushioning, grip, and durability with up to 85% recycled foam. Use code FSF20 for 20% off: https://blumakastore.myshopify.com/discount/FSF20


    Stick Mobility

    Get your flexibility back and prevent injuries with Stick Mobility. Training Sticks improve range of motion, muscle activation, coordination, and body awareness to build a strong foundation for better movement. Go to this Link or copy to your browser https://stickmobility.com/darian-parker and use the discount code: 1CEC828F154 to get 10% off of your purchase.


    Hyperice

    Grab your Hyperice gear and get 10% off using my affiliate link: https://tidd.ly/4noSOfW
    From percussion to compression, elevate your recovery

    Show More Show Less
    44 mins