Organelle

Mitochondria

Your cellular power plants. These ancient bacteria inside your cells produce 90% of your body's energy. When mitochondria fail, everything fails.

Mitochondria and ATP production
37
Own Genes
ATP
Energy Currency
90%
Body's Energy
1000s
Per Cell

What Mitochondria Do

ATP Production

Convert food into ATP—the universal energy currency. Without ATP, nothing works.

Apoptosis Regulation

Control programmed cell death. Dysfunctional mitochondria = cancer risk.

Calcium Signaling

Buffer calcium levels, coordinate cell signaling.

Heat Generation

Produce body heat, especially in brown fat. Thermogenesis.

Hormone Synthesis

Make steroid hormones (cortisol, testosterone, estrogen) and heme.

ROS Signaling

Produce reactive oxygen species for cellular signaling (and damage if excessive).

How ATP Is Made

🍽️

1. Fuel Input

Glucose, fatty acids, amino acids enter mitochondria

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2. Krebs Cycle

Acetyl-CoA processed, NADH/FADH2 produced (B vitamins needed)

3. Electron Transport

Electrons flow through Complexes I-IV, pumping protons (CoQ10, iron needed)

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4. ATP Synthase

Protons flow back through ATP synthase, spinning it to produce ATP (magnesium needed)

⚠️ Causes of Mitochondrial Dysfunction

Nutrient Deficiencies

CoQ10, magnesium, B vitamins, iron, copper, carnitine—all essential for ATP production.

Toxins

Heavy metals, pesticides, mold toxins, pharmaceuticals directly poison mitochondria.

Oxidative Stress

Excess ROS damages mitochondrial DNA (no protective histones like nuclear DNA).

Chronic Infections

Some pathogens hijack or damage mitochondria. Lyme, viruses, parasites.

Artificial Light

Blue light at night, lack of red/infrared light disrupts mitochondrial function.

Medications

Statins deplete CoQ10. Fluoroquinolones damage mitochondrial DNA. Many drugs are mito-toxic.

Thyroid Dysfunction

T3 directly regulates mitochondrial biogenesis. Low thyroid = fewer, weaker mitochondria.

Aging

Mitochondrial DNA accumulates mutations over time. Energy production declines.

Sedentary Lifestyle

Exercise stimulates mitochondrial biogenesis. No exercise = mitochondria atrophy.

Signs of Mitochondrial Dysfunction

Energy

  • • Chronic fatigue
  • • Post-exertional malaise
  • • Exercise intolerance
  • • Needing excessive sleep

Brain

  • • Brain fog
  • • Cognitive decline
  • • Poor concentration
  • • Memory issues

Muscles

  • • Muscle weakness
  • • Muscle pain
  • • Poor endurance
  • • Slow recovery

Heart

  • • Heart palpitations
  • • Cardiomyopathy
  • • Exercise-induced issues

Metabolic

  • • Temperature dysregulation
  • • Cold intolerance
  • • Blood sugar issues

Other

  • • Chronic diseases
  • • Accelerated aging
  • • Multiple sensitivities

✅ Supporting Mitochondrial Health

CoQ10

Essential electron carrier. Ubiquinol form best absorbed. Especially if on statins.

Magnesium

ATP is stored as Mg-ATP. Without magnesium, ATP is unstable and less usable.

B Vitamins

B1, B2, B3, B5 all required for Krebs cycle and electron transport chain.

Sunlight

Red and near-infrared light stimulate cytochrome c oxidase, boosting ATP production.

Cold Exposure

Stimulates mitochondrial biogenesis, increases brown fat, improves efficiency.

Exercise

Most powerful trigger for mitochondrial biogenesis. More mitochondria = more energy.

Fasting

Triggers mitophagy—clearing out damaged mitochondria. Quality over quantity.

PQQ

Stimulates mitochondrial biogenesis. Powerful antioxidant for mito protection.

D-Ribose

The backbone of ATP. Can help rebuild ATP pools in chronic fatigue.

Mitochondria Discussion