Evidence-based men’s health
You came for the name. Stay for what nobody else will tell you.
One guy, no medical degree, reading the actual trials on erectile dysfunction, hair loss, testosterone, fertility and the rest, and reporting what they say, including the findings that are inconvenient for the people selling the cure.
Every clinical claim here is traced to
Who writes this
I’m Will Preston. I’m not a doctor. I’m a guy who got tired of searching these things at 1am and finding nothing but sales pages.
So I started reading the guidelines and the trials myself and writing down what they actually say. Every claim links to its source, so you can check me instead of trusting me. More about how I work, including why the byline is a pen name.
Start here
The questions people actually type
- why can I get hard but not stay hardErectile dysfunction
- do penis enlargement pills actually workPenis enlargement
- does Viagra or Cialis last longerErectile dysfunction
- is my testosterone actually lowTestosterone
- will finasteride ruin my sex lifeHair loss
- what do my semen analysis numbers meanFertility
- how do I last longer in bedPremature ejaculation
- what happens when I stop taking a GLP-1Weight and metabolic
- testosterone shots vs gel vs pelletsTestosterone
- is dutasteride stronger than finasterideHair loss
- is shockwave therapy for ED actually provenErectile dysfunction
Topics
Ten things men search for at 1am
10 articlesErectile dysfunction
Physical versus psychological causes, what the prescriptions do, and what the alternatives are worth.
8 articlesWeight & metabolic health
GLP-1s, body composition, and the metabolic problems that quietly drive half the other topics here.
7 articlesLow semen volume
Volume and sperm count are different conditions. Nearly every product sold for one cites research about the other.
7 articlesHair loss
Two FDA-approved drugs with decades of trial data, and an industry built on top of them. What the numbers actually say.
5 articlesPremature ejaculation
What works, how strong the evidence behind each option really is, and when it is worth seeing someone.
6 articlesTestosterone & vitality
What low T actually is, what genuinely raises it, and why the booster aisle looks the way it does.
5 articlesPenis enlargement
The honest answer, the narrow exceptions, and the methods that are actively dangerous.
5 articlesSexual health & STIs
Testing intervals, what protection does and does not cover, and how to have the conversation.
6 articlesMental health & libido
Anxiety, depression, and the sexual side effects of the drugs used to treat them.
10 articlesGeneral men’s health
Sleep, bloodwork, screening and the unglamorous baseline stuff everything else sits on.
Men’s health online is mostly two things: clinics that answer the question and then sell you the answer, and content farms rewriting each other.
Both leave out the same material. The studies that didn’t work out, the difference between the thing you’re worried about and the thing being sold to you, and the honest admission that a question isn’t settled.
That material is what this site is for. My article on fertility supplements leads with a 2,370-man NIH trial that found no benefit and one signal of harm. Fertility supplements are the easiest category on this site to monetise. I don’t monetise anything. That’s the standard, and it’s written down.
Published
Latest
The ED Treatment Evidence Card
All 25 statements in the AUA erectile dysfunction guideline, with the recommendation strength and evidence grade each one carries. Zero rest on Grade A evidence.
13 September 2026
Half of ED Treatment Pages Leave Out That the Treatment Is Investigational
We coded 137 claims across 90 pages against the AUA guideline. Half omit that shockwave, PRP and stem cell therapy for ED are investigational.
12 September 2026
Testosterone Injections vs Gel vs Pellets: What Actually Separates Them
Eight approved testosterone routes side by side: dosing schedules, how flat each keeps your levels, which carries a boxed warning about your family, and which may spare your sperm count.
12 September 2026
Suicide in Men: The Numbers, the Warning Signs, and What Helps
Why men account for four in five suicide deaths, what the warning signs look like in men specifically, whether asking directly increases risk, and which interventions have evidence.
11 September 2026
Heat and Sperm: Saunas, Laptops and What the Evidence Shows
What controlled heating does to sperm and how fast it reverses, why the laptop studies never measured semen, the conflicting underwear evidence, and what a 3,041-couple cohort found.
11 September 2026