Reflections and Recommendations

In this closing chapter, the speakers reflect on key insights from their discussion on life-extension and share gratitude for listener engagement. They also introduce Element's electrolyte drink mix and Levels' glucose monitoring system, emphasizing their health benefits and exclusive offers for the audience.

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The Life-Extension Episode — Dr. Matt Kaeberlein on The Dog Aging Project, Rapamycin, Metformin, Spermidine, NAD+ Precursors, Urolithin A, Acarbose, and Much More | Brought to you by Levels real-time feedback on how diet impacts your health, Athletic Greens all-in-one nutritional supplement, and LMNT electrolyte supplement. More on all three below.

Dr. Matt Kaeberlein (@mkaeberlein) is a professor of Laboratory Medicine and Pathology at the University of Washington School of Medicine, with adjunct appointments in Genome Sciences and Oral Health Sciences. Dr. Kaeberlein’s research interests are focused on understanding biological mechanisms of aging in order to facilitate translational interventions that promote healthspan and improve quality of life for people and companion animals.

Dr. Kaeberlein is the founding director of the University of Washington Healthy Aging and Longevity Research Institute, the director of the NIH Nathan Shock Center of Excellence in the Basic Biology of Aging at the University of Washington, director of the Biological Mechanisms of Healthy Aging Training Program, and founder and co-director of the Dog Aging Project.

Please enjoy!

This episode is brought to you by Athletic Greens. I get asked all the time, “If you could use only one supplement, what would it be?” My answer is usually AG1 by Athletic Greens, my all-in-one nutritional insurance. I recommended it in The 4-Hour Body in 2010 and did not get paid to do so. I do my best with nutrient-dense meals, of course, but AG further covers my bases with vitamins, minerals, and whole-food-sourced micronutrients that support gut health and the immune system.

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This episode is also brought to you by LMNT! What is LMNT? It’s a delicious, sugar-free electrolyte drink mix. I’ve stocked up on boxes and boxes of this and usually use it 1–2 times per day. LMNT is formulated to help anyone with their electrolyte needs and perfectly suited to folks following a keto, low-carb, or Paleo diet. If you are on a low-carb diet or fasting, electrolytes play a key role in relieving hunger, cramps, headaches, tiredness, and dizziness.

LMNT came up with a very special offer for you, my dear listeners. For a limited time, you can get a free LMNT Sample Pack with any purchase. This special offer is available here: DrinkLMNT.com/Tim.

This episode is also brought to you by Levels! I wrote about the health benefits of using continuous glucose monitors (CGMs) more than ten years ago in The 4-Hour Body. At the time, CGMs were primitive and hard to use. Levels has now made this technology, and the unique insights that come from it, easy and available to everyone. Levels is making glucose monitoring simple, helping you see how food affects your health through real-time feedback. I started tracking my glucose years ago to learn more about what I should and shouldn’t be eating (including quantities, time of day, etc.), based on objective data from my own, unique physiology. Keeping my blood sugar stable is critical to my daily and long-term health and performance goals. Furthermore, poor glucose control is associated with a number of chronic conditions like diabetes, Alzheimer’s disease, heart disease, and obesity. It’s important.

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[06:44] What is aging biology?

[08:43] How Matt pivoted from mathematics to biology.

[11:46] What is the Dog Aging Project?

[13:42] Understanding healthspan through Matt’s frozen shoulder ordeal.

[20:23] Rapamycin vs. sterile inflammation.

[23:07] Current thoughts about how the immune system changes as we age.

[29:11] Anti-aging uses for rapamycin (and potential risks/side effects).

[42:20] Rapamycin and the Dog Aging Project.

[45:30] Rapamycin vs. neurodegeneration.

[48:21] What studies tell us about rapamycin’s potential to increase lifespan.

[51:30] Rapamycin alternatives considered for the Dog Aging Project.