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The Human Upgrade · August 16, 2026 · 00:15:10

It's Weird, But It Turns On Your Anti-Aging Switch : 1520

In this solo episode, Dave Asprey explains that chronic fatigue and brain fog are not inevitable consequences of aging but rather symptoms of damaged mitochondria when a cellular cleanup process called mitophagy shuts down. He walks through how stress, declining NAD+, and other factors impair mitophagy, and outlines practical strategies to reactivate it, including fasting, REHIT exercise, cold exposure, and targeted supplements. The episode provides a concise overview of mitochondrial health as a key anti-aging switch.

This summary was generated from show notes and public descriptions, not from a full transcript review. Details may contain inaccuracies.

Highlights

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Damaged mitochondria cause fatigue and brain fog00:00:00
Chronic fatigue and brain fog are not caused by aging itself, but by an accumulation of damaged mitochondria that impair cellular energy production.
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Stress inhibits mitophagy00:04:05
Chronic stress blocks the mitophagy switch, accelerating the accumulation of damaged mitochondria.
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NAD+ decline impairs mitophagy00:07:29
As NAD+ levels drop with age, mitophagy efficiency deteriorates, compounding mitochondrial damage.
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Fasting reactivates mitophagy00:08:59
Periods of fasting switch mitophagy back on, clearing out damaged mitochondria.
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Editorial

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REHIT and cold exposure stimulate mitophagy00:10:27
Dave Asprey recommends reduced-exertion high-intensity training (REHIT) and deliberate cold exposure as practical mitophagy triggers.
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The supplement stack to support mitophagy00:12:02
Dave discusses a combination of supplements designed to boost NAD+ levels and aid mitochondrial cleanup.
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