Maternal lineage, mitochondria, brown/black skin and thriving in winter.

🙋🏾♀️Matenal lineage, mitochondria, brown/black skin and thriving in winter.

Our health is deeply intertwined with our lineage and the environment we live in. I’ve always felt my best when I’m soaking up the sun on holiday. It’s like my mood and health do a complete 180! But when winter rolls around in the UK, I notice that shift—less energy, more fatigue. I always thought it was to do with time off from a frankly manic schedule in primary care. And then as I found a joy for learning again I realised it was much more than that. It’s all linked to our mitochondria.

Our mitochondria, those powerhouse organelles in our cells, are not just energy factories. They hold a story—your mitochondrial DNA is inherited from your mother. That means your maternal lineage can influence whether you have coupled or uncoupled mitochondria. If your roots trace back to equatorial regions, you might find that your mitochondria function differently in areas of the world with more seasonal climates.  

Uncoupled mitochondria, often found in those with fair skin, are adept at producing heat and releasing infrared light, which is essential in regions with seasonal changes. Cold exposure can boost mitochondrial function, but what about those of us with darker skin living far from the equator?

For people of equatorial lineage, it’s crucial to seek out sunlight, especially during those long winters.

Coupled mitochondria—often found in individuals with brown or black skin—thrive in high UV environments. They are efficient energy producers, but they can struggle in lower UV conditions.

But here’s the good news! You can support your mitochondria in various ways:

1. Grounding: Walking barefoot on natural surfaces helps to reconnect you with the Earth’s energy. This can enhance mitochondrial function and reduce inflammation.

2. Cold Exposure: Whether it’s cold showers or outdoor swimming, this practice can boost mitochondrial efficiency and resilience. (Consider supervision for this)

3. Sunlight: When you can, make it a priority to get outside! If you’re far from the equator, consider a light therapy box or natural sunlight exposure during peak hours.

Research backs this up! A study published in Nature Reviews Molecular Cell Biology emphasizes the role of mitochondrial efficiency in overall health (PMID: 30036795). Another paper from Frontiers in Physiology discusses how cold exposure enhances mitochondrial biogenesis (PMID: 30327583).

So, if you’re feeling sluggish this winter, take a moment to reflect on your mitochondrial health. Seek sunlight, embrace grounding, and don’t shy away from the cold!

Remember, your health is deeply intertwined with your lineage and the environment you live in. Let’s nurture our mitochondria for better health and vitality!