PDF · 28 pages · Edition 02
The Cool Protocol · A 13-week plan
The Cool Protocol.
The heat audit, the swaps, the dates and the tests worth doing, all in one plan built on published research. For men trying now, trying later, or heading into IVF.
One payment · Instant download link by email · No subscription
Buy the kit later? Inside, you'll find a code that takes the price of this guide off your first NumbNuts kit, valid until 31 December 2026.
What's inside
A plan, not an essay.
The 2-minute Heat Audit
Score your week in hours, not guesses, and find your top three heat sources.
Heat swaps, ranked
Sorted by effort and by strength of evidence, with exactly what to do for each one.
Four cool-day timelines
Desk day, long drive, gym and sauna day, heatwave. Hour by hour.
The 13-week plan
Start-date maths for day 64, 74 and 91, week-by-week actions, and a printable tracker.
The bigger dials
Testosterone therapy and steroids, smoking, vaping, cannabis, alcohol, weight, sleep and fever. What the numbers say.
Your semen analysis, decoded
WHO reference values in plain English, how to prepare for the test, and a results log.
Heading into IVF or ICSI
What fits in 2, 6 or 12 weeks, and the questions worth asking your GP or clinic.
Every claim, sourced
Each study with what it found and what it doesn't prove. Full references with PubMed IDs.
Look inside
Four of the 28 pages.
Who it's for
Wherever you are with it.
Trying now
Know which habits to change this week, and when it's time to book a test.
Trying later
Three months of runway. Use it on the swaps that are actually measured.
Heading into IVF
What fits before your cycle, and the questions to take to your clinic.
Just curious
You saw spermmaxxing on your feed. This is the version with sources.
What it isn't: medical advice. It doesn't diagnose anything, and no plan can promise a pregnancy. It gives you the evidence, the swaps and the questions, so your GP or clinic conversation starts further along.
Straight answers
Before you buy.
How do I get it?
Straight after checkout you'll get an email with your download link. It's a 28-page A4 PDF that reads well on a phone, with worksheets designed to print.
Is it medical advice?
No. It's general information built on published research, with every source listed. If you're worried about your fertility, speak to your GP or clinic.
Do I need the NumbNuts kit to follow it?
No. Most of the swaps cost nothing. The kit helps with one of them: heat during your hottest hours.
Can I get a refund?
Because it's a download, the 14-day right to cancel ends once you choose immediate access and the download starts. If something's wrong with the file, email hello@numbnutsclub.com and we'll sort it.
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