Science of Muscle Growth, Increasing Strength & Muscular Recovery | Huberman Lab Podcast #22
Summary

The Huberman Lab Podcast, hosted by Andrew Huberman, a Professor of Neurobiology and Ophthalmology at Stanford School of Medicine, discusses science and science-based tools for everyday life. The podcast is separate from Huberman's teaching and research roles at Stanford and is part of his effort to bring zero-cost information about science and science-related tools to the general public. In this podcast episode, the speaker discusses the nervous system's role in controlling muscle movement, the importance of resistance exercise in offsetting the normal decline in strength, posture, and range of movement that occurs as we age, and the importance of the mind-muscle connection in muscle hypertrophy and strength training.

The speaker also discusses the process of lactate production in the body during exercise and how it acts as a buffer against acidity, a fuel, and a hormonal signal for other organs in the body. The context discusses the importance of recovery and how to test it using grip strength and carbon dioxide tolerance. The speaker explains the carbon dioxide tolerance test and how it measures one's ability to engage the parasympathetic arm of the nervous system. They suggest that a carbon dioxide discard time of 20-25 seconds or less indicates that one is not fully recovered from previous activities.

The speaker discusses various tools and methods for recovery and improving nerve to muscle communication after exercise, including carbon dioxide tolerance, cold exposure, and supplements such as omega-3s, vitamin D, and magnesium malate. The speaker also touches on the concept of the "pump" in weight training and evaluates various methods for enhancing workouts.

In this context, the speaker discusses various ways to improve physical performance, including salt intake, creatine, and beta-alanine. The speaker also mentions the importance of ingesting essential amino acids, particularly leucine, to support muscle synthesis. Additionally, the speaker notes that arginine and citrulline can improve performance for longer bouts of exercise but may increase the likelihood of herpes outbreaks.

The speaker discusses the relationship between protein intake and muscle growth, suggesting that consuming animal proteins may be more efficient in terms of essential amino acid density. However, he notes that vegans and vegetarians can still support muscle growth with supplementation. The speaker also discusses the optimal frequency of meals, suggesting that eating two to four times a day is sufficient for muscle repair and growth. He also discusses the relationship between exercise and cognitive function, noting that hard bouts of exercise can temporarily reduce oxygenation of the brain and suggesting that scheduling intense cognitive work on days when physical training is not scheduled can enhance focus. Finally, the speaker provides information about Thorne supplements and encourages listeners to support the podcast through subscriptions and Patreon.