The cold shower challenge is five days in a row where every shower you take is 100 percent cold water — no warm start, no hot finish. It is the cold-exposure half of the Wim Hof method we opened the summer with, and being July, the tap is as warm as it gets all year, so you are getting off easy. More than a health protocol, treat it as a mind challenge: can you choose discomfort for five straight days when nothing is forcing you to?
Listen now: press play in the player above and follow along.
The challenge is simple: for five days in a row, every shower you take is 100 percent cold water. No warming it up at the start, no hot finish — completely cold, every shower, for five days. It pairs with the Wim Hof breathing we opened the summer with, because cold exposure is the other half of Wim Hof's method. In July the tap water is about as warm as it gets all year, so honestly you are getting off easy.
Think of it first as a mind challenge rather than a health protocol. You can get too comfortable, and the cold shower is a daily, controlled dose of voluntary discomfort: can you stand there without reaching for the hot tap? If you experience health benefits along the way, great — Wim Hof advocates cold exposure alongside his breathing for a reason — but the core of this challenge is discipline. Can you choose discomfort five days in a row when nothing is forcing you to?
Yes. We started the summer challenges with the Wim Hof breathing — 40 deep breaths, a full exhale held as long as you can, then one big inhale held about thirty seconds, repeated three or four rounds. Cold exposure is the other pillar Wim Hof advocates, so this challenge completes the pair. A lot of listeners texted me that the breathing was remarkably beneficial for them in different ways, and it has been the same for me, which is why the cold finish felt like the natural next experiment.
Not very, and that is part of the joke. In July, almost anywhere in the country, the water coming out of the tap is as warm as it will be all year, so a fully cold shower is genuinely manageable. If you have never taken one before it will still feel plenty cold for the first thirty seconds. The discomfort is real but brief, which makes summer the perfect low-stakes season to find out whether cold exposure does anything for you.
Then do not do them, and that is perfectly fine. I say that sincerely — plenty of people will think this one is stupid, and nobody has to try it. The entire summer challenge series runs on Bruce Lee's rule to absorb what is useful and discard what is not, and discarding is a legitimate outcome. If you do want to try it, though, go all in: full willpower, full discipline, every shower completely cold for five days, and see what you learn about yourself.
Here is the whole protocol:
I explain how I approach the first thirty seconds in the episode.
We have been cooking through these: meditation, a hundred pull-ups a day, no bread, no sugar, and eight hours of sleep, which remains my favorite by far. The pattern by now should be familiar — if the no-sugar week made you feel better, keep eating that way; if the sleep week changed your mood, adjust your schedule and protect it. I recap where I have landed on each one in the episode, so press play in the player above.
You can get too comfortable. That is the honest reason behind this challenge. Whether or not the cold water does anything measurable for your body, the daily act of choosing discomfort when the hot tap is six inches away is a rep for your discipline, and discipline transfers to everything. I make the case for treating comfort as the real opponent in the episode, so press play in the player above.
Since the first week of the summer, people have been texting me at (305) 930-7346 about the Wim Hof breathing, and a lot of you have found it remarkably beneficial in very different ways. It has been the same for me. Cold exposure is the other half of what Wim Hof teaches, so this week closes the loop on the method. I share some of those listener reports in the episode, so press play in the player above.
If you think this one is stupid and you do not want to try it, that is perfectly fine — discarding is a legitimate outcome of every challenge this summer. If you are in, though, be all the way in: willpower, determination, discipline, and a completely cold shower every time for five days.
See if you can get through it. See what it teaches you. Then keep it or toss it, just like Bruce Lee said. Press play in the player above for the full episode.
Physical Friday is my weekly fitness series for fishing guides, anglers, hunters, and outdoorsmen — the training, nutrition, and mindset to stay in the game for life. Watch and listen to every Physical Friday episode from Tom Rowland.
cold showers · cold exposure · Wim Hof · Wim Hof breathing · discipline · voluntary discomfort · summer challenges · eight hours of sleep challenge · 100 pull-ups challenge · no sugar challenge · no gluten challenge · Bruce Lee
I'm Tom Rowland, a professional fishing guide based in the Florida Keys, host of the Tom Rowland Podcast, and the longtime host of the Saltwater Experience television show. On the podcast's Physical Friday series I share the training, nutrition, and mindset work I use to stay strong for a life outdoors, so fishing guides, anglers, hunters, and outdoorsmen can keep doing what they love for as long as possible.
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