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Michael Kummer
Michael Kummer
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Michael Kummer

Michael Kummer is a healthy living enthusiast and CrossFit athlete whose goal is to help people achieve optimal health by bridging the gap between ancestral living and the demands of modern society.

Plunge Brand Ice Bath Review

Published: Dec 15, 2023Last Modified: Dec 15, 2025 Author: Michael Kummer

The Plunge is a reasonably priced cold water immersion tub that requires very little ongoing maintenance thanks to its advanced water filtration and sanitation system. I’ve been using the Cold Plunge for more than two years as part of my daily routine to boost my immune system, become more resilient and improve my tolerance to … Read more

Carnivore Diet And Fiber: What You Need to Know

Published: Dec 12, 2023Last Modified: Feb 2, 2026 Author: Michael Kummer

Animal-based diets like carnivore don’t include much (if any) fiber. Here’s why that not a problem when it comes to gut health, weight loss, blood pressure and more.

What Is a Good Heart Rate Variability (HRV)?

Published: Nov 20, 2023Last Modified: Oct 27, 2025 Author: Michael Kummer

Normal HRV varies depending on factors like age, sex and overall fitness. Here are the normal ranges, plus tips for diagnosing why your HRV might be lower than expected.

B.Rad Grass-Fed Whey Protein + Creatine Superfuel Review

Published: Oct 27, 2023Last Modified: Nov 11, 2025 Author: Michael Kummer

I get most of my protein from muscle and organ meat, but I appreciate having the option of adding more into my diet via powder. B.Rad’s whey protein is one of the cleanest options on the market, thanks to its high-quality ingredients and gentle processing method.

What to Look For In An Infrared Sauna

Published: Oct 26, 2023Last Modified: Jul 8, 2025 Author: Michael Kummer

Here’s everything you need to know about buying an infrared sauna, including pricing, key features, size considerations and more.

WHOOP vs Apple Watch for Fitness and Sleep Tracking

Published: Oct 12, 2023Last Modified: Jul 28, 2025 Author: Michael Kummer

I’ve been wearing an Apple Watch since Day 1 and a WHOOP strap since early 2019. I still wear both devices. In this article, I explain why that is and what the differences are between the two devices as far as fitness and sleep tracking are concerned.

How Red Light Therapy Improves Athletic Performance

Published: Oct 7, 2023Last Modified: Jun 2, 2025 Author: Michael Kummer

A surprisingly large amount of evidence shows that red light therapy can boost athletic performance, both directly and indirectly. Here’s the science behind how and why it works, along with the most notable benefits.

Equip Prime Protein Review

Published: Oct 5, 2023Last Modified: Dec 15, 2025 Author: Michael Kummer

Prime Protein is a beef protein isolate that I use to help fill dietary gaps. It’s one of the best beef protein powders on the market, but it may not be the right choice if your goal is building muscle.

The 7 Best Keto Meal Replacement Shakes

Published: Oct 4, 2023Last Modified: Dec 29, 2025 Author: Michael Kummer

These keto meal replacement shakes are high in fat, low in carbs, and free of junk ingredients like artificial sweeteners. (I’ve also included a few high-protein options for those specifically looking to build muscle.)

How to Avoid Sunburn Without Sunscreen

Published: Sep 30, 2023Last Modified: Oct 9, 2025 Author: Michael Kummer

Humans and our early ancestors have evolved with daily sun exposure and without skin cancer, thanks to ancient mechanisms that protect our skin from harsh UV radiation. In this article, I’ll share with you how you can tap into those protective mechanisms so you can avoid using toxic sunscreen.

Why Adding Visible Red Light Improves Infrared Saunas

Published: Sep 29, 2023Last Modified: Jun 2, 2025 Author: Michael Kummer

Red light therapy and infrared light therapy have distinct mechanisms of action and benefits, so combining them can result in a synergistic effect that maximizes their potential advantages. Here are some specific benefits that red light adds when combined with infrared light in a sauna.

Why Barefoot Shoes Are Good For Your Feet and Body

Published: Sep 16, 2023Last Modified: May 7, 2025 Author: Michael Kummer

Barefoot shoes can improve your foot health (preventing problems like bunions and hammer toe), as well as your hip and spine alignment. Here’s a rundown of their key benefits, according to research.

Peluva Review: Comfy and (Relatively) Stylish Barefoot Shoes

Published: Aug 29, 2023Last Modified: Apr 24, 2025 Author: Michael Kummer

Conventional shoes are terrible for your health, but most barefoot shoes are ugly. Peluva set out to change that, and I had a chance to try them from a range of activities, from CrossFit workouts to running errands (and even date night with my wife).

Young Goose Skincare Review

Published: Aug 25, 2023Last Modified: Dec 22, 2025 Author: Michael Kummer

I used two Young Goose products — their C.A.R.E. Moisturizer and Hyperbaric Mask — for eight weeks. Here are my test results, with before and after pictures to show the improvement.

TheraFrost Ice Bath Review

Published: Jul 31, 2023Last Modified: Dec 22, 2025 Author: Michael Kummer

TheraFrost is one of the best cold plunges on the market because it strikes a nearly perfect balance between form and function. TheraFrost can cool the water down to a bone-chilling 37° F and keeps it clean and sanitary using an ozone-based filtration system. And while the portable tub is big enough to accommodate even … Read more

Therasage Thera360 PLUS Review

Published: Jul 20, 2023Last Modified: Apr 8, 2025 Author: Michael Kummer

If you want to make sauna bathing a regular part of your wellness routine but don’t have the space or budget for a full-size sauna cabin, the Therasage Thera360 PLUS is an excellent choice. It offers all of the health benefits of much larger (and more expensive) saunas, costs a fraction of the price, and … Read more

The Best Red Light Therapy Devices

Published: Jul 16, 2023Last Modified: Sep 24, 2025 Author: Michael Kummer

These are the best at-home red light therapy devices based on factors such as their light dosage, form factor, ease of use and portability (as well as my hands-on experience testing them).

Does Apollo Neuro Work?

Published: Jul 13, 2023Last Modified: Jun 9, 2025 Author: Michael Kummer

Here’s what the scientific research says about whether Apollo Neuro actually works, as well as a summary of how that research aligns with my own experience using the vibration-based wearable device.

Lumen Review: Valuable Insights With a High Price Tag

Published: Jun 20, 2023Last Modified: Dec 15, 2025 Author: Michael Kummer

Lumen is a device that promises to improve your metabolic flexibility. I tested the metabolism tracker to find out if it really works, and to see how it’s different from blood glucose and ketone monitors.

Radiant Life Whole House Water Filtration System Review

Published: May 21, 2023Last Modified: Jun 18, 2025 Author: Michael Kummer

We’ve had the Radiant Life Whole House Filtration system since February of 2021 and love it. The system removes most contaminants from our water supply while requiring virtually zero maintenance.

Mito Red Light Therapy Review (Hands-On With the MitoPRO 1500)

Published: May 10, 2023Last Modified: Aug 4, 2025 Author: Michael Kummer

Mito Red Light makes affordable red light therapy devices that emit a combination of red and near-infrared light using the most bioactive wavelengths to help improve sleep, skin health, muscle recovery and fat loss.

Kineon Move+ Pro vs. Recharge Health FlexBEAM

Published: May 5, 2023Last Modified: Sep 24, 2025 Author: Michael Kummer

Move+ Pro and FlexBEAM are two red light therapy devices that share some similarities but offer different benefits. In this article, I compare both devices side-by-side and explain how I’ve used them as part of my wellness routine.

Redwood Outdoors Finnish Sauna Review

Published: May 2, 2023Last Modified: Apr 8, 2025 Author: Michael Kummer

Redwood Outdoors makes Finnish saunas using high-quality and non-toxic materials that look phenomenal, are easy to assemble and offer all the health benefits saunas are known for. We’ve had our Thermowood Panorama Sauna with Porch since early 2023 and absolutely love it.

WHOOP Review

Published: Apr 21, 2023Last Modified: Dec 15, 2025 Author: Michael Kummer

Hands-on review of the WHOOP Strap 4.0 from the perspective of an amateur CrossFit athlete, and a comparison with the WHOOP 3.0, Apple Watch, Biostrap and Oura Ring.

How Accurate Is WHOOP for HR, Calorie Burn & Sleep Tracking?

Published: Apr 21, 2023Last Modified: Jun 7, 2025 Author: Michael Kummer

To find out exactly how accurate the WHOOP strap is, I’ve worn it together with a chest strap heart rate monitor. The results might surprise you!

Why SnakeWater Is the Healthiest Energy Drink Available

Published: Apr 4, 2023Last Modified: Feb 3, 2026 Author: Michael Kummer

SnakeWater leverages ketones (the brain’s preferred fuel source) and clean ingredients to deliver a boost of healthy energy. It has no sugar, no caffeine, and no toxic preservatives.

Bon Charge Blue Light Blocking Glasses Review

Published: Mar 21, 2023Last Modified: Dec 15, 2025 Author: Michael Kummer

Blue light blocking glasses from BON CHARGE filter out 100% of the light frequencies that have been scientifically shown to disrupt the release of melatonin and harm your sleep.

10 Health Benefits of Intermittent Hypoxic Training

Published: Mar 20, 2023Last Modified: Dec 2, 2025 Author: Michael Kummer

In-depth review of the top ten benefits of high altitude and intermittent hypoxic training based on science and blood tests I had done.

Apollo Neuro Review: My Verdict After 300+ Hours

Published: Mar 17, 2023Last Modified: Dec 22, 2025 Author: Michael Kummer

Apollo Neuroscience is a wearable that uses your sense of touch and gentle waves of vibration to change your heart rate variability (HRV), reduce stress and improve your sleep. I’ve used Apollo for the past few weeks and I’m thrilled to share what I’ve learned.

CAROL Bike Review (After Five Years of Use)

Published: Mar 13, 2023Last Modified: Dec 15, 2025 Author: Michael Kummer

CAROL is a reduced exertion high-intensity interval training (REHIT) bike that I’ve used since 2019 to improve my cardiorespiratory fitness.

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© 2026 Michael Kummer

  • Topics
    • Biohacking
    • Cold Plunging
    • Nutrition
    • Red Light Therapy
    • Sauna Therapy
    • Sleep
  • Podcast
  • Supplements
  • Videos
  • Newsletter
  • About
    • About Michael Kummer
    • Meet the Team
    • Editorial Guidelines
    • How We Make Money
    • Partnerships and Advertising
    • Contact
    • Write For Us
    • Terms and Conditions
  • Downloads
    • Animal Based Food List
    • Paleo/Keto Diet Food List
    • Non-Toxic Products (Michael’s Favorites)
    • Gut Healing Guide