Q&A 416: How To Reverse Gray Hair (& Other Beauty Biohacks), The Adrenal Fatigue Myth, The Shocking Beer Exercise Results & Much More! – Ben Greenfield Fitness

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News Flashes – Follow Ben on Twitter for more…5:00

  • Those who want to lose weight but don’t want to give up their beer will find this quite compelling: alcohol (especially beer) seems to be OK if you’re doing HIIT…5:40
    • Positive effects of HIIT were not negatively influenced by the daily intake of beer over a 10-week period with no other dietary modifications.
    • No change in force, power, muscular endurance, soreness, rating of perceived exertion.
    • No change in resting heart rate, lactic acid.
    • In a study done on rats, coffee grounds mitigated the damaging effects of high carb/high fat more than what coffee would.
    • Brewing modifies the compounds found in ground coffee into a polymer called melanoidin.
    • Melanoidins in the coffee grounds can sneak through the digestive tract and wind up in the large intestine where they get metabolized by the gut bacteria and fermented into short-chain fatty acids—improving the quality of the gut microbiome.
    • Consuming coffee grounds decreases the ratio of firmicutes to Bacteroides, which are proxies for obesity.

Resources mentioned:

Listen to my two-part interview with Joel Greene:


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Click here for the full written transcript of this podcast episode.

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Listener Q&A:

How To Reverse Gray Hair…36:34

Zirak from Singapore asks: I was wondering if you’ve come across a really good biohack for gray hair. How can one actually avoid getting gray hair as you mature, and if you do get it, can you reverse it?

In my response, I recommend:

Why hair turns gray:

  • Hair whitens because of hydrogen peroxide (H₂O₂).
    • In young people, H₂O₂ is easily broken down into O₂ and H₂O.
    • As you age…
      • The breakdown process is less effective, more H₂O₂ builds up in the hair follicle.
      • You get an inhibition of the synthesis of the color pigment melanin which helps to color hair.
    • Increasing H₂O₂ breakdown is one way to delay hair whitening.
  • The enzyme methionine sulfoxide reductase (MSR) normally helps hair follicles repair the damage done by H₂O₂.
    • As you age, levels of MSR tend to decrease.
    • High levels of H₂O₂ with low levels of MSR causes more gray hair production.
  • What would cause H₂O₂ breakdown to increase or keep it from being broken down?
    • The enzyme catalase plays a role in the graying process of hair because it breaks down H₂O₂ into O₂ and H₂O.
      • Catalase levels increase, H₂O₂ decreases, hair graying process is stimulated.
    • Another enzyme, glutathione peroxidase converts H₂O₂ into water.
      • Glutathione Peroxidase level increases, effects of H₂O₂ decrease.
    • Homocysteine, related to inflammation, increases levels of H₂O₂.
      • High levels of inflammation ≈ high levels of homocysteine ≈ high levels of H₂O₂.
    • Xanthine oxidase produces H₂O₂ in the body.
      • High levels of Xanthine Oxidase ≈ high H₂O₂ levels.

How to stop hair from graying:

  • Increase catalase enzyme activity:
    • Pseudocatalase creams to restore pigmentation, slow, and even cause recoloration of gray hair
    • Ashwagandha
  • Increase glutathione:
  • Lower homocysteine: – bioavailable folic acid
  • Decrease Xanthine Oxidase
  • Scavenging H₂O₂:
    • Lipoic acid and cysteine (eggs, sesame seeds)
  • Restoring melanogenesis:
  • PHYTO RE30 Anti-Grey Hair Treatment supposedly re-pigments hair at its roots (no research)

The Adrenal Fatigue Myth…55:30

Janae from Australia asks: Hi Ben, I got the Epstein-Barr virus, aka mono, during week 38 of my pregnancy. It stayed with me and left me bed-bound for 4 months or so. Couple with a newborn baby, it was not an ideal experience. Since then, I’ve had post-viral fatigue, and just when I start to feel a bit better, I just get sick again and the fatigue comes back. I’ve been doing things like NAD IV’s and hyperbaric oxygen chamber at 1.35 ATA, but the fatigue is really persistent and seems to keep coming back. I’m hoping for some guidance on how to kick this fatigue for good.

In my response, I recommend:

How I Would Nourish My Body After A Viral Infection…1:07:35

Mark asks: I’m a 36-year-old Marine Corps veteran, former college athlete, big fan of yours…and I have COVID-19. I’m beginning to recover from it, but I’m wondering what are some things I should be focusing on as I recover?

In my response, I recommend: 

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