GLP-1 agonist medications have been a popular topic of discussion recently. While this weight loss drug was designed for obesity, GLP-1 agonists like Ozempic have made their way into Hollywood. This has people questioning their safety and possible health risks, especially in the long run. Are GLP-1 agonists a quick fix for weight loss or a lifetime prescription? Who should be prescribed this medication, and what are the possible side effects?  This Longevity by Design episode features an interview with Dr. Spencer Nadolsky—An obesity and lipid specialist physician. Dr. Nadolsky explains how GLP-1 medications cause weight loss, answers questions about safety concerns, and discusses interesting patient stories about how people react to this medication. Dr. Nadolsky has a lot of patient experience with GLP-1 agonist drugs and is very knowledgeable about their current use and future potential. 

Timestamps:Introduction: (0:00–2:00)Why Dr. Nadolsky became a physician: (2:00–4:13) What is cardiometabolic medicine?: (4:13–5:17)What is a “healthy” metabolism?: (5:17–7:37)How does diet impact glucose regulation: (7:37–10:20)Why has insulin resistance increased in the past decade?: (10:20–11:45)Ethnicity impacts BMI cutoffs: (11:45–12:57)Is obesity a choice?: (12:57–17:40) How socioeconomic status impacts obesity: (17:40–21:30)What's better: A BMI score or a DEXA scan?: (21:30–25:33)How strength training improves healthspan: (25:33–32:32) What a fasting insulin blood test tells you: (32:32–36:58)Health risks of insulin resistance: (35:15–38:08)How insulin resistance can increase ApoB: (38:08–39:25)How does ApoB predict heart disease risk?: (39:25–42:50)Why isn't ApoB included in typical lipid panels?: (42:50–44:25)Behavioral science and clinical practice: (44:25–50:06)How do GLP-1 agonists cause weight loss? (50:06–56:03)Negative side effects of GLP-1 medications: (56:03–57:36)Price of GLP-1s: (57:36–58:53)GLP-1: A short term quick fix or a lifetime prescription?: (58:53–1:02:19)Biggest health myths on social media: (1:02:19–1:08:45)Top tip for healthspan: (1:08:45–end) 
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How GLP-1 Agonists Are Changing Obesity Care with Dr. Spencer Nadolsky

Longevity by Design is a podcast for individuals looking to experience a longer, healthier life. In each episode, Dr. Gil Blander joins a co-host and an industry expert to explore a personalized health journey. The show helps you access science-backed information, unpack complicated concepts, learn what’s on the cutting edge of longevity research and the scientists behind them. Tune into Longevity by Design and see how to add years onto your life...and life onto your years.

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In this episode of Longevity by Design, host Dr. Gil Blander is joined by Dr. Morten Scheibye-Knudsen, a leading figure in aging research. Dr. Scheibye-Knudsen discusses his groundbreaking research on the role of DNA damage in the aging process and its implications for chronic diseases, aging research, and longevity medicine. The goal of his work is "to discover interventions leading to healthier, happier, and more productive lives." Dr. Scheibye-Knudsen's work is on understanding normal and premature aging, with a focus on the pivotal role of DNA damage in the aging process and interventions for healthier aging. By combining computational methods with laboratory experiments, his team explores innovative strategies to target DNA and counteract aging processes. This conversation illuminates the intricate relationship between DNA damage, aging, and chronic diseases.  Dr. Scheibye-Knudsen also discusses the impact of lifestyle (diet, exercise, sleep, social factors) on aging. He goes on to describe his work using data-driven approaches to better understand aging and developing interventions, including identifying novel targets and drugs, for healthier aging. Additionally, he explains what longevity medicine is and the importance of educating clinicians and politicians on this topic to translate research on aging into healthcare and improve people’s healthspan and lifespan. Dr. Scheibye-Knudsen's dedication to unraveling the mysteries of aging is advancing scientific knowledge, which has tangible benefits for global health and longevity. 
Episode timestampsIntroduction: 00:00-03:06What led Dr. Morten Scheibye-Knudsen to become a scientist?: 03:07-04:37Could please give us an overview of the research you are doing?: 04:38-05:54What is DNA damage, and what causes it?: 05:55-07:54What do we know about the influence of DNA damage on aging and age-related diseases?: 07:55-09:41Can DNA damage be repaired? 09:42-14:14What questions are your research group asking to better understand DNA damage and repair and their effects on aging?: 14:15-16:22What is NAD, and why is it relevant to aging and age-related diseases?: 16:23-19:56What are the benefits and risks of NR and NMN supplements in humans?: 19:57-24:50What is a ketogenic diet? What are the effects of a ketogenic diet or ketones on DNA damage or repair and aging?: 24:51-31:08What is the effect of a ketogenic diet on cancer?: 31:09-32:29What is the Aging Research and Drug Discovery (ARDD) conference and its mission?: 32:30-40:43What are the most prevalent features of aging?: 40:44-47:54Are there differences in aging between females and males?: 47:55-50:21Are there differences in tissue aging trajectories?: 50:22-54:01Identifying compounds that target aging: 54:02-56:16Can nuclear morphology predict cellular senescence and cancer?: 56:17-01:04:04What is longevity medicine, and why is it so important for physicians?: 01:04:05-01:07:25What pharmaceutical drugs are the most promising for targeting aging to extend human healthspan and lifespan?: 01:07:26-01:12:00How important are lifestyle factors such as nutrition, physical activity and exercise, sleep, and social engagement and connections for human healthspan and lifespan?: 01:12:01-01:16:39Dr. Morten Scheibye-Knudsen’s top tip for health: 01:16:40-01:18:22

The Impact of DNA Damage & Lifestyle on Aging & Longevity Medicine with Dr. Morten Scheibye-Knudsen

Do you know what senescent (zombie) cells are and how cellular senescence and senolytics impact health? In this episode of Longevity by Design, hosts Ashley Reaver and Dr. Gil Blander are joined by Dr. James Kirkland from the Mayo Clinic, one of the world's leading figures in aging research. This episode is a deep dive into aging research, cellular senescence, and senolytics. Dr. Kirkland discusses the impact of cellular aging (senescence) on healthspan and his discovery of the first senolytic agents that remove senescent cells and extend healthspan, illuminating his pioneering work in aging research. Dr. Kirkland shares insights into the science of cellular senescence and how selectively eliminating these cells could revolutionize the treatment of age-related chronic diseases. He sheds light on the mechanisms behind senolytics and their promise for extending healthspan. The discussion also touches on the importance of lifestyle factors like diet and exercise in managing senescent cells.  Dr. Kirkland also discusses geroscience, a research paradigm that seeks to understand the mechanisms of aging and how this knowledge can be used to slow the rate of aging, reverse its effects, delay or even cure age-related diseases, and extend healthspan. T Dr. Kirkland also covers the challenges and opportunities in translating these scientific discoveries into clinical applications, emphasizing the critical role of interdisciplinary efforts in advancing our understanding and management of aging. This is an enlightening episode with Dr. Kirkland on aging research and the opportunities to revolutionize healthcare by combating aging-related diseases and extending people’s health span and lifespan. 
Timestamps:Introduction: 00:00-03:49What led Dr. James Kirkland to become a physician-scientist and become interested in aging research?: 03:50-05:24What is geroscience, and what are fundamental aging processes?: 05:25-09:17What are the differences between targeting aging vs. the traditional medical system of waiting to treat illnesses or diseases after they occur?: 09:18-12:39What are gerotherapeutics, and what is their relevance for healthspan and lifespan?: 12:40-16:10What are senescent cells? What is the impact of senescent cells on the body and aging: 16:11-26:39What are senolytics? How do senolytics work to target senescent cells to remove them?: 26:40-35:05How Dr. James Krikland discovered senolytics such as fisetin, quercetin, and dasatinib? What clinical trials on the effects of senolytics in humans have been done? 36:06-40:47Discovering biomarkers for senescent cells: 40:48-42:37What are some important factors to consider on the effects of gerotherapeutics and senolytics on lifespan and healthspan in model organisms compared to humans?: 40:38-47:39The potential for geroscience and gerotherapeutics, such as senolytics, to transform healthcare. What is the importance and what are some challenges of conducting clinical trials on gerotherapeutics, such as senolytics, to improve healthspan in humans?: 47:40-56:15What is the Translational Geroscience Network, and what are its goals?: 56:16-01:02:01How might senolytics be used clinically in the future if proven safe and effective? What conditions might they benefit?: 01:02:02–01:05:57What are the effects of lifestyle, such as diet and exercise, on senescent cells?: 01:05:58-01:06:52What excites Dr. James Kirkland the most about the potential for extending people's healthspan and lifespan with therapies, drugs, or interventions in the coming years?: 01:06:53-01:07:41Dr. Kirkland’s top tip for health? 01:07:42-01:12:14

The Effects of Cellular Senescence and Senolytics on Healthspan with Dr. James Kirkland

This episode of Longevity by Design discusses mental health and suicide risk and prevention. The following topics are discussed: depression, suicide, substance abuse, social isolation, among others also. This episode is intended to raise awareness of mental health issues and suicide risk and prevention. The topics discussed may be distressing or triggering for some individuals. Please proceed with caution if you continue to listen to this episode. Our mental health is vital for healthspan and lifespan, yet mental health and suicide remain difficult topics for many. In this enlightening episode of Longevity by Design, host Dr. Gil Blander welcomes Dr. Peter Franz to explore the profound connection between aging, mental health, and suicide. Dr. Franz, an expert in mental health and suicide risk and prevention, shares insights on the prevalence of mental health issues and their impact on our lifespan and healthspan. Through an engaging discussion, they shed light on the critical need for understanding and addressing mental health to live longer, healthier lives.

 The conversation dives into the statistics on mental health and suicide, highlighting how these issues are more common and impactful than many may realize. Dr. Franz emphasizes the importance of raising awareness on these issues, accessible resources and interventions, and the role of social support in combating isolation—a significant factor in mental health deterioration and increased suicide risk. He also discusses other major risk factors for mental health and suicide risk, including the effect of age. The discussion also addresses barriers to seeking mental health care and the stigmatization surrounding these topics.

 Dr. Franz offers practical advice on mental health and suicide prevention, stressing the importance of social support and seeking professional help when needed. He advocates for a holistic approach to health, including social connections and engagement, and the significance of the inextricable link between our mental health and physical health. This episode not only educates on the links between aging, mental health, and suicide risk and prevention but also encourages listeners to take proactive steps toward mental wellness, underscoring the message that taking care of one's mental health is essential for living a long, healthy, and fulfilling life.

Aging, Mental Health, Suicide Risk & Prevention with Dr. Peter Franz

Can we find ways to target human aging and extend healthspan? This ambitious premise is at the heart of XPRIZE Healthspan, a 7-year, $101 million global competition with an audacious challenge: to successfully develop a proactive, accessible therapeutic that restores muscle, cognitive, and immune function by a minimum of 10 years, with a goal of 20 years, in persons aged 65-80 years, in one year or less. In this episode of Longevity by Design, hosts Ashley Reaver and Dr. Gil Blander spoke with Dr. Jamie Justice, Executive Vice President of the Health Domain at XPRIZE, and Executive Director of XPRIZE Healthspan. The conversation sheds light on the emerging scientific evidence and paradigm-shifting concept for therapeutic interventions to extend healthspan and lifespan by targeting aging, rather than one age-related disease at a time. Dr. Justice also discusses her career journey and the XPRIZE Healthspan competition, in which she is leading international networks to drive innovative solutions to improve human health and aging that is affordable and accessible to all.

 The conversation also explores the intersection of art and science in Dr. Justice's work. She emphasizes the role of creativity in scientific discovery, suggesting that a holistic approach is essential for groundbreaking achievements in aging research. The episode wraps up with Dr. Justice emphasizing a holistic approach for good health. This episode is a must-listen for anyone interested in aging and healthspan and the innovative work being done by XPRIZE.

 Episode timestampsIntroduction: 00:00-02:08What led Dr. Jamie Justice to become a scientist?: 02:09-06:55How did Dr. Jamie Justice get interested in aging, healthspan, and longevity research?: 06:56-13:14What kind of research did Dr. Jamie Justice do before becoming the EVP of the Health Domain at XPRIZE Foundation?: 13:15-26:09What is XPRIZE?: What is the mission of XPRIZE? Why did Dr. Jamie Justice join XPRIZE?: 26:10-35:36What is XPRIZE Healthspan?: 35:37-45:46How is XPRIZE uniquely positioned to advance and facilitate innovative solutions to improve human health and aging?: 45:47-49:54What are the phases of XPRIZE Healthspan?: 49:55-56:05Who can apply to be in the XPRIZE Healthspan competition?: 56:06-58:54What kind of trial designs does the XPRIZE Healthspan competition allow?: 58:55-01:02:38How is the winner of XPRIZE Healthspan decided?: 01:02:39-01:04:57Dr. Jamie Jusice’s top tip for improving health: 01:04:58-01:07:46

XPRIZE Healthspan: Revolutionizing Human Aging & Healthspan with Dr. Jamie Justice

Aging is inevitable, but can we influence how we age? In this episode of Longevity by Design, hosts Dr. Gil Blander and Ashley Reaver, MS, RD, CSSD,  interview Dr. Nir Barzilai—the Director of the Institute for Aging Research at the Albert Einstein College of Medicine and the Director of the Paul F. Glenn Center for the Biology of Human Aging Research and of the National Institutes of Health’s (NIH) Nathan Shock Centers of Excellence in the Basic Biology of Aging—during which he discusses groundbreaking research on aging. 

This is an enlightening discussion with Dr. Barzilai on factors influencing healthspan and lifespan, and the paradigm-shifting idea of targeting aging to extend healthspan and lifespan. He shares fascinating insights from his research on the influence of genetics and lifestyle on healthspan and lifespan, and blood biomarkers of aging. The conversation sheds light on the emerging scientific evidence and paradigm-shifting concept for medical interventions (gerotherapeutics) to extend healthspan and lifespan by targeting the underlying biology of aging.

The episode wraps up with actionable insights for listeners interested in enhancing their healthspan and longevity. Dr. Barzilai discusses the importance of personalized health strategies, integrating cutting-edge research with everyday health practices while emphasizing the importance of a holistic approach. As a listener, you will leave equipped with knowledge and science-backed ways to navigate your personal health journey and help you live healthier longer.

Timestamps:Introduction: 00:00-04:13Why Dr. Barzilai’s studies centenarians and their children?: 04:14-10:07 Do centenarians live longer with poor health or live healthier longer? 10:08-13:07Does becoming a centenarian have a strong genetic influence?: 13:08-15:41How do growth hormone and IGF-1 affect healthspan and lifespan?: 15:32-23:39What other genes affect healthspan and lifespan?: 23:40- 26:51Does low IGF-1 negatively impact muscle and physical functioning?: 26:52-28:40What are the effects of ethnicity and socioeconomic status on longevity: 28:41-30:57What is the effect of lifestyle, nutrition, and exercise on the longevity of centenarians?: 30:58-34:07Do women or men live longer?: 34:08-37:55Why do women live longer than men?: 37:56-41:38Biomarkers of aging and biomarkers of organ aging: 41:39-47:07What is metformin, and what is the purpose of the TAME trial?: 47:08-51:37Do you think metformin will improve healthspan and lifespan?: 51:38-54:20Does metformin only improve blood glucose control, or does it benefit health and aging in other ways? 54:21-56:50Is metformin good for older adults but not young adults?: 56:51-57:45How does the combination of metformin and exercise impact muscle size (hypertrophy) and strength?: 57:46-01:00:45Should everyone take metformin?: 01:00:46-01:03:13Dr. Gil Blander’s and Dr. Nir Barzilai’s personal humorous anecdotes on exercise: 01:03:14-01:04:32Is there a reason and explanation for why metformin did not show an effect on lifespan in mice in the Interventions Testing Program (ITP)?: 01:04:33-01:07:01Are GLP-1 agonists beneficial for healthspan and lifespan?: 01:07:02-01:10:55Are there tradeoffs with using GLP-1 agonists?: 01:10:56-01:11:43What are the top 5 gerotherapeutic candidates for improving healthspan and lifespan?: 01:11:44-01:15:10Dr. Nir Barzilai’s top tip for improving health: 01:15:11-01:19:29

How GLP-1 Agonists Are Changing Obesity Care with Dr. Spencer Nadolsky

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