10 Signs Your Mitochondria are Dying (that lab tests don't show)

Love Chris Masterjohn!!! This episode is amazing

## Key Insights from the Thomas DeLauer / Chris Masterjohn Discussion Based on the uploaded text. ## 1. Mitochondria may be the hidden root of many health problems The core idea is that many symptoms people treat separately may actually be signs of poor mitochondrial function. Mitochondria are not just “energy factories,” but central regulators of metabolism, repair, hormones, sleep, mood, blood sugar, thyroid function, libido, recovery, and aging. When mitochondria cannot efficiently turn food, oxygen, nutrients, and light signals into ATP, the body behaves as if it is in an energy shortage. That can show up as fatigue, poor sleep, anxiety, depression, gut problems, high cholesterol, blood sugar issues, low thyroid, poor ketone handling, elevated lactate, autoimmunity, and reduced recovery. The criticism is that conventional medicine often treats visible markers — cholesterol, glucose, thyroid hormone, testosterone, sleep, mood — without asking whether the body’s energy-production system is failing underneath. ## 2. Warning signs of mitochondrial dysfunction The text lists several possible warning signs: high cholesterol, low thyroid function, unstable blood sugar, unusual ketone levels, elevated morning lactate, poor sleep, anxiety, depression, gut issues, and autoimmune patterns. These problems may look unrelated, but they can connect through impaired energy metabolism. For example, high lactate in the morning may suggest the body is relying too much on inefficient energy pathways despite overnight rest. Abnormal ketone patterns may show poor fuel switching. The point is not that every symptom automatically means mitochondrial failure. But when several signs cluster together, mitochondrial dysfunction becomes a useful lens. ## 3. Aging reduces mitochondrial function, but lifestyle still matters The discussion claims mitochondrial function declines roughly 1% per year after age 20. By age 70, cellular energy production may be much lower. This decline is linked to weaker repair, poorer skin quality, lower collagen production, and general aging. But the message is optimistic: mitochondrial decline is not completely fixed. Much of it may be influenced by diet, nutrients, light exposure, sleep, movement, and lifestyle. The goal is not to “stop aging,” but to improve mitochondrial turnover, remove damaged mitochondria, support new mitochondria, and reduce unnecessary energy stress. ## 4. The foundation: nutrients, sunlight, sleep, and circadian rhythm The first solution is getting the basics right. Mitochondria require many nutrients to produce energy: vitamins, minerals, amino acids, fatty-acid-related compounds, antioxidants, and cofactors. If one key nutrient is low, ATP production can suffer. The second foundation is circadian alignment. Morning sunlight, daytime outdoor light, less artificial light at night, and a regular sleep-wake rhythm are presented as essential mitochondrial signals. Sunlight is not just “blue light in the morning.” Natural sunlight contains a changing spectrum of blue, red, and infrared light throughout the day. This rhythm helps the body know when to wake, produce energy, repair, and sleep. ## 5. Artificial light may stress mitochondria Modern artificial light, especially LED light and flicker, may confuse the body’s natural rhythm. Indoor lighting often contains too much blue light, not enough red or infrared light, and sometimes flickers in ways that may stress the nervous system and mitochondria. Red light panels, infrared devices, saunas, and full-spectrum lights may be useful, but they should supplement nature, not replace it. Morning sunlight remains the foundation. ## 6. Creatine is more than a gym supplement Creatine is described as part of the body’s cellular energy grid. It helps distribute mitochondrial energy throughout the cell, not just improve muscle performance. The text connects creatine to brain energy, cognition, recovery, sperm motility, stomach acid production, vision, traumatic brain injury recovery, and possibly cognitive decline prevention. Because many people do not eat enough meat to get high creatine intake from food, supplementation may help support cellular energy buffering. ## 7. Creatine and sleep can go in different directions In some people, creatine may improve sleep duration and recovery. One personal experiment described higher creatine intake increasing sleep time. But in others, creatine may reduce the need for sleep by improving energy availability. That is not automatically bad if the person feels more rested. If sleep decreases and the person feels wired, anxious, or less recovered, then creatine may be exposing an imbalance. The deeper message is that sleep hours are only a proxy. The real goal is restored energy, low anxiety, strong recovery, and good physical and cognitive performance. ## 8. Creatine side effects may involve glycine, methylation, or electrolytes Some people report insomnia, anger, twitching, restless legs, bloating, or agitation from creatine. The text suggests this may relate to glycine status, methylation balance, or electrolyte needs. Glycine is calming, supports sleep, helps lower core body temperature, and buffers methyl groups. Since creatine metabolism interacts with methylation and glycine pathways, some people may need to start with a very low dose, add glycine, improve electrolytes, or build up gradually. ## 9. Low thyroid may be an energy problem The thyroid is described as the body’s energy regulator. Thyroid hormone tells the body to increase metabolic rate. But this only works safely if mitochondria can supply enough energy. If mitochondria are weak, forcing thyroid activity higher may create an energy debt. That is why the text warns against treating low thyroid without asking why it is low. Low thyroid can be connected to calorie restriction, nutrient deficiency, mitochondrial dysfunction, oxidative stress, inflammation, or poor antioxidant protection inside the thyroid gland. ## 10. The thyroid is vulnerable to oxidative stress The thyroid produces hydrogen peroxide as part of making thyroid hormone. That makes it especially exposed to oxidative stress. Selenium is discussed because it supports glutathione peroxidase, an enzyme system that helps neutralize hydrogen peroxide. This may explain why selenium can help some people with Hashimoto’s thyroiditis. The bigger point is that thyroid problems may sometimes reflect poor antioxidant protection and mitochondrial stress, not simply a need for more hormone. ## 11. Food and nature before drugs and hormones A major framework is the mitochondrial health hierarchy: Food and natural exposure first. Then basic supplements if needed. Then individualized nutrients. Then mitochondrial support like CoQ10. Then stronger tools such as peptides, hormones, or pharmaceuticals only when appropriate. The principle is “food before pharma.” Drugs and hormones can help, but they can also signal abundance without creating abundance. If the underlying energy system is weak, pushing the body harder may backfire. ## 12. Vitamin D should not be treated as one isolated number The text argues that vitamin D status should be interpreted in context. Instead of only looking at 25-hydroxyvitamin D, it may be useful to also consider active vitamin D, parathyroid hormone, calcium balance, and inflammation. The message is not “never take vitamin D.” It is: understand why vitamin D is low before automatically supplementing. ## 13. Testosterone, libido, and mitochondria form a feedback loop Low testosterone is also framed as an energy problem. Testosterone signals abundance, but mitochondrial function helps create the energetic state that allows testosterone to be produced. Good mitochondria support hormones, and healthy hormone signaling supports mitochondria. But if energy production is poor, testosterone may drop, libido may fall, recovery may worsen, and the system can spiral downward. CoQ10 is presented as a lower-risk mitochondrial support that may also improve testosterone-related outcomes in some cases. ## 14. Ketosis is a tool, not a universal ideal Ketosis is discussed as useful in certain contexts, especially epilepsy, fasting, brain-energy problems, and possibly alcohol withdrawal. Ketones can provide an alternative fuel and may improve mitochondrial efficiency in some situations. But the text rejects the idea that humans are “supposed” to be permanently ketogenic. Ketosis is a tool, not a rule. Long-term keto also changes nutrient demands. Fat metabolism requires more riboflavin, CoQ10, and carnitine, while carbohydrate metabolism increases thiamine demand. Any diet can create problems if its nutrient demands are not met. # Conclusion The central insight is that many modern health problems may be connected by one deeper issue: poor energy production. Mitochondria influence thyroid function, blood sugar, sleep, mood, libido, inflammation, testosterone, aging, and recovery. The solution is not one magic supplement. The foundation is nutrient sufficiency, real food, morning sunlight, circadian rhythm, good sleep, movement, and reduced artificial stress. Targeted tools like creatine, glycine, electrolytes, CoQ10, selenium, vitamin D/A support, or ketones may help — but only when used to solve a specific bottleneck. The best mental model is this: when mitochondria are weak, the body enters energy-saving mode. When mitochondria are supported properly, the body can shift toward repair, resilience, better hormone signaling, stronger recovery, clearer cognition, and healthier aging.

This is one of the best podcasts I have ever watched. The entire health space needs more convos like this. CMJ is an absolute G

Easily one of the best health discussions on YouTube in 2026! Please do another one with CMJ sometime again!

Sunlight doesn't prevent kids from needing glasses, it's the fact that they are outside which means everything they look at they change focal distances far more often than people do indoors, so the brain stays more attuned to controlling the focus of the eyes better. I know this for a fact because I experience it personally working on a computer I have to wear my reading glasses, 10 minutes outside on a walk and my close range Focus comes back Crystal Clear without the glasses, it's neurological not sunlight driven.

Super indulgent episode really enjoyed this thanks guys 🙌👊💪

Such an awesome episode!

Hi Thomas, I watched this talk in its entirety and is one of the best! I enjoy the nutritional/energy discussions!

Enjoyed this!

I love this one ❤