Our Why
Our Why
Dr Jack Close
Founder, SPN Health
Dr Jack Close
Founder, SPN Health
DATE: FEB 17, 2026
DATE: FEB 17, 2026
READING TIME: 2 MIN
READING TIME: 2 MIN
One day in 2024, 9 out of my 12 patients in A&E had preventable . The prevention they needed wasn't in the last two weeks. It was over the last ten years. They didn't realise that had compounded into life-changing illness. an emergency medicine doctor. Every shift, I see the end result of a healthcare system that waits too long to act.
One day in 2024, 9 out of my 12 patients had preventable . The prevention they needed wasn't in the last two weeks. It was over the last ten years. They didn't realise that had compounded into life-changing illness. an emergency medicine doctor. Every shift, I see the end result of a healthcare system that waits too long to act.
One day in 2024, 9 out of my 12 patients in A&E had preventable . The prevention they needed wasn't in the last two weeks. It was over the last ten years. They didn't realise that had compounded into life-changing illness. an emergency medicine doctor. Every shift, I see the end result of a healthcare system that waits too long to act.
I came home and started researching: what's the most high-leverage thing anyone can do to prevent disease? The answer was clear. There's that stands above the rest for measuring how long, and how well, someone will live. I figured if I wanted to help people live longer, who better to start with than . We got tested together and our reports came back with pages of and graphs. We spent months figuring it out—adjusting his training, recovery, lifestyle—based on trial and error. That's when I realised: people only stick to a plan when they understand why that plan exists. My dad stuck with it because we could connect the dots between his numbers and what they meant for staying capable over the next 10 years. You're smart enough to follow a plan. You just need one that makes sense to you.
I came home and started researching: what's the most high-leverage thing anyone can do to prevent disease? The answer was clear. There's that stands above the rest for measuring how long, and how well, someone will live. I figured if I wanted to help people live longer, who better to start with than . We got tested together and our reports came back with pages of and graphs. We spent months figuring it out—adjusting his training, recovery, lifestyle—based on trial and error. That's when I realised: people only stick to a plan when they understand why that plan exists. My dad stuck with it because we could connect the dots between his numbers and what they meant for staying capable over the next 10 years. You're smart enough to follow a plan. You just need one that makes sense to you.
Your Limiter
You have three systems powering your fitness: your heart, lungs and muscles. One of them is setting your ceiling.
Your Limiter
You have three systems powering your fitness: your heart, lungs and muscles. One of them is setting your ceiling.
That's when I knew we needed to build something different. You should know if it's your heart, lungs, or muscles . You should know what to train and why. You should see how what you're doing today connects to staying capable in 10, 20, 30 years. This brought me to a roadblock: I'm dealing with health information, and it needs to be safe and secure. That's where I met . He's a software developer well-versed in building beautiful apps and keeping all the data within them safe. Together, we're building SPN Health. Our mission is simple: give you before you develop .
That's when I knew we needed to build something different. You should know if it's your heart, lungs, or muscles . You should know what to train and why. You should see how what you're doing today connects to staying capable in 10, 20, 30 years. This brought me to a roadblock: I'm dealing with health information, and it needs to be safe and secure. That's where I met . He's a software developer well-versed in building beautiful apps and keeping all the data within them safe. Together, we're building SPN Health. Our mission is simple: give you before you develop .
Dr Jack Close
Founder, SPN Health
Dr Jack Close
Founder, SPN Health