Every week, the average person ingests the equivalent weight of a credit card in plastic. While certain preventive measures can significantly reduce your intake of these harmful substances, it’s crucial to acknowledge a more daunting concern: the bioaccumulation of microplastics in the brain, potentially at ten times the rate of other organs. Microplastics and their associated chemicals are alarmingly ubiquitous — they permeate breast milk, sperm, the hippocampus, the prefrontal cortex, the air we breathe, medications, the water supply, and our bloodstream, accumulating in most major organ systems. During this episode, we’ll explore the unsettling realities of microplastics and their associated chemicals, diving into how they infiltrate nearly every facet of our environment and body, and discuss actionable strategies to reduce exposure.
Dr. Layne Norton is a Ph.D. in Nutritional Sciences, a professional bodybuilder, and a champion powerlifter. We discuss why most people aren’t training too hard, when to go to failure, whether seed oils are “the” central cause of chronic disease, why having a slow metabolism isn’t a credible reason for being overweight (for most), and the sustaining power of good habits. We also get into controversies around the carnivore diet, diet sodas, artificial sweeteners, intermittent fasting, and much more.
Timestamps:
(00:00) Introduction
(04:48) Layne's coaching philosophy
(14:39) Why to start tracking calories (for at least 3 days)
(17:41) Why people lie to themselves about food intake
(23:06) The profound benefits of small exercise doses
(26:53) Why you should treat exercise like brushing your teeth
(30:11) Benefits of resistance training for older individuals
(33:51) Should you train to failure?
(47:07) Why hard training & consistency trump exercise selection
(56:46) Is lifting heavy necessary for building muscle?
(57:54) Barbell vs. hack squats for preventing falls
(1:00:10) Can lifting weights decrease low-back pain?
(1:01:43) Injury prevention when resistance training
(1:11:16) How exposure therapy can help you with injuries
Dr. Luc van Loon is a renowned figure in the realm of exercise science, particularly celebrated for his deep understanding of protein metabolism, resistance training, and the nuanced role of collagen supplements in sports nutrition. Our conversation is an in-depth discussion on optimal protein intake & distribution strategies for stimulating muscle protein synthesis with delightful detours into insightful discussion of un ique topics like the timing of cold-water immersion.
Timestamps:
(00:00) Introduction
(06:00) Why do we need protein?
(07:04) How the protein RDA (0.8 g/kg) was established
(11:34) Protein turnover in organs (brain, liver, etc.)
(14:54) How much protein do you really need?
(19:42) Recommended protein intake when dieting for weight loss
(20:59) How the body adapts to higher protein
(24:30) Anabolic resistance
(27:29) Protein requirements for overweight & obese individuals
(29:42) Gaining strength vs. muscle mass
(34:04) Optimal protein distribution
(37:49) 20g vs. 100g protein post-workout (Luc van Loon study)
(40:45) Can evening protein consumption stimulate muscle protein synthesis overnight?
(45:29) How does time-restricted feeding affect muscle protein synthesis?
(51:51) Protein before vs. after exercising
(53:41) How does spreading out protein intake affect hypertrophy?
#092 The Truth About Alcohol: Risks, Benefits, and Everything In-Between | Dr. Rhonda Patrick
In this special solo episode of FoundMyFitness, we’re taking a deep dive into alcohol. We’ll explore the science, misconceptions, controversies, and health effects of this widely used drug. I believe that a nuanced, scientific discussion on alcohol is the best way to provide you with the information you need to make an informed decision about alcohol use.
Timestamps
(00:00) Introduction
(08:03) What does it mean to "have a drink"?
(09:39) Drinking frequency definitions
(12:39) How alcohol is metabolized
(18:25) Can alcoholism be inherited?
(19:41) How food affects alcohol metabolism
(21:40) Does age affect alcohol metabolism?
(22:29) How alcohol affects nutrient absorption
(27:04) How alcohol affects gut health
(28:57) Alcohol elevates circulating LPS levels
(31:51) Gut health & alcohol use disorders
(36:30) Sick quitter & healthy user biases
#091 Andrew Huberman, PhD: How to Improve Motivation & Focus By Leveraging Dopamine
Dr. Andrew Huberman is a Stanford professor, neurobiologist, and host of the incredibly popular Huberman Lab Podcast. He’s also the guest on this episode of the FoundMyFitness podcast. Our conversation encompasses an in-depth discussion of the brain’s dopamine system and provides a toolkit for enhancing motivation and focus.
Timestamps
(00:00) Introduction
(07:58) Dopamine's Neuromodulatory Role
(09:50) Motivation vs. Reward
(14:56) Dopamine as a "Wave Pool"
(20:19) Minimizing Smartphone Dopamine Effects
(23:53) Dangers of Effortless Dopamine Peaks
(27:13) Signs of High Motivation
(29:20) Dopamine Reward Prediction Error
(38:21) Warm-Up Period for Focus and Motivation
(42:37) Rewarding Effort
(53:12) Fostering Tenacity in Kids
(55:26) Visualizing Negative Outcomes
(58:12) Overcoming Procrastination
#090 How Exercise Prevents & Reverses Heart Aging | Benjamin Levine, M.D.
Today's guest, Dr. Benjamin Levine, has shown that with the right exercise protocol, people who were sedentary most of their lives could reverse up to 20 years of heart aging. Dr. Levine is one of the world's leading experts in understanding how the heart adapts under a variety of conditions, whether that's exercise, elite athleticism, or hospital bedrest. Or even highly exotic conditions, like prolonged exposure to microgravity. He is the founding director of the Institute for Exercise and Environmental Medicine at UT Southwestern in Dallas.
Timestamps
(00:00) Introduction
(06:21) Bed rest vs. aging
(11:40) Does exercise protect against long COVID?
(17:14) How 12 weeks of bed rest affects heart size
(18:42) Why a brand-new rubber band mimics a lifetime of endurance training
(22:14) The exercise dose that preserves youthful cardiovascular structure
(24:22) The exercise regimen that reversed 20 years of heart aging
(28:05) What it takes to reverse vascular age by 15 years
(33:29) Benefits of starting an exercise regimen in your 70s
#089 Why Exercise Intensity Matters for Longevity | CrossFit for Health 2024
I recently had the privilege of presenting at the CrossFit Health Summit, where I explored a constellation of factors contributing to longevity. In this context, I placed a special emphasis on the pivotal role of vigorous exercise throughout life.
Timestamps
(00:00) Introduction
(03:12) Why "below normal" cardio may be a great starting point
(05:07) The simple math of 45 days of life extension (per 1 mL/kg/min VO2max)
(06:12) Why poor cardiovascular fitness is nearly as bad as a chronic disease
(06:52) Why zone 2 training may not improve VO2 max
(08:08) Protocols for improving VO2 max quickly
(09:10) How to estimate VO2 max in 12 minutes;
(10:07) Reversing 20 years of heart aging
(12:41) Blood pressure benefits of vigorous exercise
(13:29) The BDNF brain benefits of high-intensity exercise
(14:05) The signaling role of lactate production by muscle
#088 The Science of Optimizing Sleep - Special Preview
If you’ve been following FoundMyFitness for a while, you may remember that we have our members-only podcast, The Aliquot. I want to share a preview of our newest Aliquotepisode, "The Science of Optimizing Sleep," available to everyone, not just our Premium Members.
Adequate, quality sleep is essential for the body's recovery and repair, promoting optimal physical and mental health. Getting a good night's sleep can be challenging, especially in our modern world, but we can take steps to overcome those challenges. In this Aliquot, we present a mashup of our best resources on sleep, featuring insights from Dr. Matthew Walker, Dr. Satchin Panda, and me. In this preview, we discuss:
(00:02:13) How exercise timing affects deep sleep
(00:08:03) Do saunas and hot baths increase sleep-enhancing hormones?
(00:12:33) Can learning and meditation boost deep sleep?
(00:14:10) Do scented oils, like lavender, impact sleep?
(00:14:47) The insulin-tryptophan-melatonin connection
(00:19:20) Why carb-heavy meals make us sleepy
In the full episode available only for Premium Members, we also discuss:
#087 The Science of Magnesium and Its Role in Aging and Disease | Dr. Rhonda Patrick
In this solo episode, I'm taking an in-depth look at magnesium – a critical yet frequently underestimated mineral in our health. Magnesium stands tall among vital nutrients for its significant role in multiple aspects of human physiology. During this podcast, we'll delve into the widespread negative health effects caused by a lack of magnesium and discuss why increasing your magnesium intake might be key to achieving optimal health.
In this episode, I discuss:
(00:00) Introduction
(04:27) Why the effects of magnesium are far-reaching
(06:47) Why athletes need at least 10-20% more magnesium than the RDA
(10:54) Why magnesium deficiency & insufficiency are common
(12:19) How to determine if you're getting enough magnesium
(15:14) Magnesium supplements
(18:17) Is magnesium threonate better at crossing the blood-brain barrier?
(25:08) Why magnesium threonate shouldn't count toward your RDA goal
(26:04) What magnesium supplement do I take?
#086 How Micronutrients & Exercise Ameliorate Aging | Dr. Rhonda Patrick
In today's episode, I'm bringing you along to the American Academy of Anti-Aging Medicine's Longevityfest Conference, where I had the honor of presenting a keynote last December. We'll explore some foundational yet effective tactics to enhance longevity and prevent diseases. Additionally, we'll delve into more intensive lifestyle modifications that, despite their demands, offer significant longevity benefits.
In this episode, I discuss:
(00:00) Introduction
(04:48) The importance of vitamin D
(09:08) How vitamin D deficiency affects all-cause mortality risk
(12:34) Optimal vitamin D levels & supplementation
(14:20) Why magnesium deficiency impairs DNA damage repair
(18:00) Dangers of inadequate omega-3 intake
(20:17) The correct omega-3 index level
(24:42) How to correct vitamin D, omega-3, & magnesium inadequacies
(26:27) Vigorous exercise is the best longevity drug
(28:00) How increasing VO2 max affects life expectancy
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