What Exactly Do Mitochondria Do?: Roles Beyond Energy Production

Introduction: Beyond Biology Class Memories

If you didn’t doze off in biology class during your school days, the first word that comes to mind when you hear the name ‘mitochondria’ would be ‘intracellular powerhouse.’ A place that burns nutrients to make energy called ATP, that was almost everything we knew about mitochondria.

However, Dr. Christopher Palmer completely overturns our common sense about mitochondria in Brain Energy. Mitochondria are not just passive existences that supply energy, but are closer to ‘conductors’ that determine the fate of cells and the brain.

1. ‘Intelligent Regulator’ Rather Than a Simple Powerhouse

Mitochondria do the work of making energy in our body, but they process an enormous amount of information in the process. By sensing signals inside and outside the cell, they decide whether to make more energy now, to stockpile it, or even whether to save or kill this cell.

Especially in brain cells, the role of mitochondria is absolute. Mitochondria are directly involved in every process from synthesis of neurotransmitters (serotonin, dopamine, etc.) to secretion and recovery. In other words, if mitochondria break down, no matter how high the serotonin level is, communication between neurons inevitably falls into a mess.

2. Behind-the-scenes Regulator of Hormones and Immune System

Surprisingly, mitochondria are also deeply involved in hormone production in our body. The synthesis of cortisol, a stress hormone, and estrogen and testosterone, sex hormones, starts right inside the mitochondria.

Also, mitochondria are the key switch that regulates the immune response of our body. When mitochondria are stressed, the cell misidentifies this as an ‘external intrusion’ and causes an inflammatory response. This is an important passage explaining why chronic mental health problems appear with chronic inflammation.

3. Switch for Gene Expression

We think genes determine destiny, but it is mitochondria that turn the switches of those genes on and off. This is called ‘epigenetic regulation.’ If mitochondria are not healthy, our bodies turn on switches for genes that are prone to disease.

In the end, what’s more important than the genes we inherited is the status of the mitochondria that manage those genes.

Conclusion: Health of Mitochondria is Health of the Heart

Now, mitochondria should not be seen simply as an ‘engine.’ Mitochondria are engineers who manage the complex circuits of the brain and a control tower that balances the entire system.

If you are suffering from unexplained fatigue, brain fog, and unstable emotions, it may not be because your heart is weak, but because your mitochondria are sending distress signals.

In the next post, we will look in more detail at the essence of the ‘Brain Energy Theory’ that synthesized this innovative perspective.