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Vision

A while back my wife and I tried starting a family. It didn't work.

Every month that passed as we waited for an NHS appointment felt like time running out. So we went private and paid for IVF. The entire pathway was built around my wife. I gave a sperm sample as part of that process.

Turns out, I was the problem. My sperm were sluggish and misshapen. We wouldn't ever have kids if things stayed the same. I wasn't going to take that lying down.

I read everything there is to read about sperm and learned that sperm is shaped by what I did each day and rebuilt every seventy days: some hope that I could turn things around. I got fitter and healthier but that wasn't enough. I built my own system in Excel and tracked everything from sleep to diet and exercise and hot showers, and watched my numbers improve across successive sperm tests. Within a year, we'd created A+ embryos, and then conceived naturally anyway.

When I talked about it afterwards, I realised I wasn't alone. Friends and colleagues had been going through the same thing. My co-founder was one of them. We shared what we'd learned. His first child was born shortly after. I got a message the other day welcoming his second.

After those experiences, LOAD.® was born.

Mission

01

Make sperm health measurable, understandable, and actionable.

Product

02

LOAD.® is the first platform that turns sperm health into a daily trackable, improvable metric.

At its core is a scoring system (the Sperm Health Score®) that gives men a complete picture of their sperm health every day, a competitive community that makes tracking social and self-reinforcing, and an ecosystem of testing, products and clinical pathways.

Nothing like this exists anywhere right now.

Decline

03

Sperm counts across the Western world have fallen by more than 60% in the last 50 years. The decline is accelerating.

Men are responsible for at least 40% of infertility in couples. Some research puts it closer to half. More than half of countries and territories are already below replacement fertility. Governments are beginning to treat this as a policy priority.

And yet the entire infrastructure of reproductive health (the clinics, the apps, the tracking tools, the podcasts, the culture) has been built around women.

There is a deeper irony. For most of a man's life, his fertility is framed as a threat. From adolescence onward the message is consistent: suppress it, contain it, don't let it cause problems. The biology that creates life is too often introduced to boys through shame. Society invests enormous energy engineering the suppression of male fertility and almost no effort building the infrastructure to restore it.

This is a civilisational problem that's being mostly ignored.

Future

04

Most people assume sperm health only matters when you're trying to conceive. That assumption is wrong.

Sperm quality is one of the most sensitive biomarkers a man has. It reflects testosterone, metabolic function, cardiovascular fitness, sleep quality, stress and toxic exposure. A man at 18 has as much reason to care as a 25-year-old trying to conceive or a 35-year-old with three kids; not because he's planning a family, but because his sperm is a window into his energy, his hormonal balance, his sexual health, even how he's ageing. Nobody has enabled men to look through it. We are the start.

But sperm's story goes even further. New research shows that it helps write the foundational architecture of new life, and we're yet to discover just how much impact there is on early development.

Principle

05

Male reproductive health has been invisible for as long as it's existed. Not because it's some unknowable mystery. Not because men don't care. Our experiences show us they do. It's because the infrastructure doesn't exist. There is no standard metric for sperm across the industry. No daily measurement. No feedback loop. No system that connects what a man does today to what his sperm looks like in 70 days.

This thinking isn't new. Augustus understood it when he inherited a republic in disorder. That's why his first act of power was not conquest but a census. He counted what Rome had never counted. He measured the empire so he could govern it.

In the history that followed, navigation was transformed by the chart, medicine was transformed by the microscope, agriculture was transformed by the calendar. In each case, the leap was not a new resource: it was a new way of seeing.

Two thousand years later, the principle hasn't changed. When you can't see something, you can't control it. When you can't control it, you can't improve it. When you can't improve it, you're left with luck. It's unacceptable that in the 21st century something as important as sperm health should be left to luck.

That's the model LOAD.® exists to replace.

“What we cannot see, we cannot change.”

The foundational truth

Inevitable

06

Once biology becomes visible, it becomes understandable. Once understandable, influenceable. Once influenceable, trainable. Once trainable, compoundable.

Heart rate followed this arc. Sleep followed it. Recovery, strain, readiness: all followed it. Each began as invisible, became measurable, became a daily practice, became a platform, became an industry.

Sperm health is next. The only question is who builds the system, how well, and how fast. We intend to answer it.

Visible

07

As I write this, my five-month-old daughter is blowing raspberries at me. She doesn't know that she was, for a time, unlikely; that her father had to turn himself into a research project to build something that should've already existed. Well, now it does.

Rex Seminis signature

Rex Seminis · Founder & CEO, LOAD.®

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