The Neuro Experience

Mitochondria Expert Reveals: Why Your Immune System Starts Failing in Your 40s (And How to Fix It)

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Mar 3, 2026
Dr. Anurag Singh, MD, PhD, an immunologist who spent 20 years studying mitochondria and immunometabolism, and who discovered urolithin A from pomegranate screening. He discusses how immune cell mitochondria drive autoimmunity, cancer surveillance failure, and neurodegeneration. They cover mitophagy, urolithin A, exercise and creatine synergy, environmental mitochondrial toxins, and AI-driven molecule discovery.
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ADVICE

Activate Mitophagy With Urolithin A

  • Consider urolithin A to activate mitophagy and renew mitochondria.
  • Singh explains urolithin A is a postbiotic from ellagitannins (pomegranate precursors) that induces mitophagy and raises PGC-1 alpha in weeks.
INSIGHT

Gut Microbiome Determines Urolithin A Production

  • Not everyone makes urolithin A naturally because gut bacteria vary greatly.
  • Singh notes producers are common in Mediterranean diets (30–40%) but as low as 2–10% in places with high antibiotic use.
INSIGHT

ATP Recovery On MRS Reveals Mitochondrial Fitness

  • MRS scanning after exercise measures mitochondrial health by ATP recovery rate.
  • Singh describes using 7T magnetic resonance spectroscopy to track ATP, phosphocreatine and NAD recovery as a functional mitochondrial readout.
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