Aging is best explained by declining mitochondrial function over time.

Aging is best explained by declining mitochondrial function over time.

Author: Chris Masterjohn, PhD December 9, 2025 Duration: 3:16
 
Aging is best explained by declining mitochondrial function over time.
 
This answers its own "why."
 
Mitochondria produce the energy needed for repair so if any of it gets lost it sets up a vicious cycle. And some *always* gets lost.
 
But how much is under your control.
 
From Joe Rogan Experience JRE 2420.
 
It's a vicious cycle initiated by the second law of thermodynamics which requires a constant input of energy to prevent the collapse of order.
 
Hence, there will always be slippage, but how much slippage depends on genetics, environment, and behavior, and all slippage leads to loss of mitochondrial repair, which itself directly causes the loss of repair capacity as it weakens the defense against the imperative of the second law of thermodynamics.

Chris Masterjohn, PhD hosts Mastering Nutrition, a podcast that digs into the science of how our bodies work at a fundamental level. The focus here is on mitochondrial health-the energy powerhouses within our cells-and how optimizing them forms the cornerstone of lasting vitality. Chris brings his background as a nutrition scientist and his experience founding BioOptHealth to these conversations, which move beyond generic diet advice. Instead, the podcast explores how individual differences, informed by tools like whole genome sequencing and detailed biochemical data, can reveal personalized paths to better metabolic function. Listeners will hear deep dives into cutting-edge research, practical interpretations of complex studies, and discussions on how to apply these insights in a real-world context. This isn't about quick fixes or trending superfoods; it's about building a coherent, scientifically-grounded understanding of nutrition from the cellular level up. Each episode aims to provide the kind of nuanced, evidence-based perspective that can help you make sense of conflicting health information. Whether the topic is a specific nutrient, a metabolic pathway, or a broader principle of wellness, Chris works to translate dense science into actionable knowledge. Tune in for a thoughtful, detailed exploration of what it truly means to master your own nutritional landscape.
Author: Language: English Episodes: 712

Mastering Nutrition
Podcast Episodes
Why You Should Moderate Your Millet | Chris Masterjohn Lite #17 [not-audio_url] [/not-audio_url]

Duration: 7:20
If you eat millet or eat gluten-free bread, you should watch this video, because you could be hurting your thyroid. Access the show notes, transcript, and comments here. Chris Masterjohn, PhD, is the Founder and Scientif…
How to Read a Science Paper | Mastering Nutrition #29 [not-audio_url] [/not-audio_url]

Duration: 2:04:58
In this episode, I explain how to come up with a good question, obtain the background information you need, find research, obtain full texts, organize them, read the different sections of a paper to get the right kind of…
How to Kill a Cold With Zinc | Chris Masterjohn Lite #16 [not-audio_url] [/not-audio_url]

Duration: 6:23
Last time we talked about supporting zinc nutritional status. Today we talk about how to kill a cold with zinc. Believe it or not, the principles are completely different. Your oysters can help you get sick lest often. B…
How to Make Your Own DIY Home Air Filter | Chris Masterjohn Lite #12 [not-audio_url] [/not-audio_url]

Duration: 3:59
I currently use a Germ Guardian, but for about a decade I used this method, which is half the initial cost and one fifth the long-term maintenance costs. Access the show notes, transcript, and comments here. Chris Master…
How to Know If Coffee Can Save Your Life | Chris Masterjohn Lite #11 [not-audio_url] [/not-audio_url]

Duration: 3:50
If you're one of the 7% who have this gene, then drinking coffee may just save your life. Access the show notes, transcript, and comments here. Chris Masterjohn, PhD, is the Founder and Scientific Director of the mitocho…