Dry Sauna Vs Infrared Vs Hot Tub, Little Known Ways To Heal The Gut, Maintaining Muscle With Ketones and More! Solosode: 495

Ben Greenfield

Dec 27, 2025

Episode description

Full Shownotes: https://bengreenfieldlife.com/podcast/495/

In this episode, I take you through a solo Q&A exploring topics like the best sauna practices, the real benefits of walking 7,000 steps a day, and the latest research on gut health treatments—including my personal experience starting a fecal microbiota transplant for chronic issues. How perceived food sensitivities can sometimes create real symptoms, clear up concerns about ketone supplements and liver health, and emphasize the importance of staying active throughout the day. I also mention my biohacking binder and let you know all the resources, studies, and tools I recommend will be linked in the show notes for anyone wanting more details.

You’ll gain access to my complete binder of home biohacking tools and gadgets designed to support long-term health and performance (click here to start exploring).

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See omnystudio.com/listener for privacy information.

Episode description

Full Shownotes: https://bengreenfieldlife.com/podcast/495/

You’ll gain access to my complete binder of home biohacking tools and gadgets designed to support long-term health and performance (click here to start exploring).

Episode Sponsors:

See omnystudio.com/listener for privacy information.

Mindsip insights from this episode:

Debunk myths: ketone supplements are safe for liver health

Rumors that ketone supplements cause liver damage are based on studies using supraphysiological doses in rodents, equivalent to an impractical amount like 28 shots of Ketone IQ.

#liver

#supplement

Choose hot tubs for superior cardiovascular and immune benefits

A recent study showed that a 45-minute hot water immersion (hot tub) provided more cardiovascular, thermoregulatory, and immune benefits than the specific dry or infrared sauna protocols tested.

#immune-system

#sauna

Combine acupuncture and moxibustion for effective gut therapy

Acupuncture combined with moxibustion, a heat therapy using a dried plant like mugwort, is one of the most effective non-drug therapies for inflammatory bowel disease.

#acupuncture

#gut

Recognize nocebo effect to avoid gluten-related symptoms

Studies show a nocebo effect where individuals who believe they are eating gluten can experience negative symptoms, even when the food is actually gluten-free.

#gluten

#placebo

Walk 7,000 steps daily for optimal health benefits

A meta-analysis revealed that walking 7,000 steps a day delivers the lion's share of health benefits, with the 10,000-step goal originating from a 1965 marketing campaign, not science.

#exercise

#walking

Avoid extreme sauna heat to reduce dementia risk

A 39-year study found that sauna temperatures over 212°F (100°C) are associated with an increased risk of dementia, while temperatures between 176-211°F lower the risk.

#dementia

#sauna

Heal gut issues with fecal microbiota transplantation capsules

Fecal Microbiota Transplantation (FMT) in oral capsule form is an effective therapy for serious gut issues like IBD and SIBO, available through doctors from companies like Novel Biome.