The Philadelphia Half Marathon
Following a plan and learning when to stick to it, change it, or take the day off.
Hi, I’m
Kelsy
Clark.
I write books, make videos, and keep notes on training for my first half marathon, living with chronic illness, and whatever I’m learning in between.
Right now
What’s taking up space in my brain.
Making chronic illness content that feels like real life
Appointments, infusions, groceries, training, work, and all the parts between them.
Fitness, nutrition, and movement I can keep doing
Simple meals. Strength work. Fewer all-or-nothing ideas.
Useful resources and better ways to explain things
Books, trackers, guides, and anything I wish I had sooner.
Philadelphia Half Marathon / 2026
Why I’m running Philly.
I’m training for my first half marathon with Team Uplifting Athletes and raising money for the rare disease community along the way.
“I live with multiple rare conditions, and I’m running to raise awareness for the rare disease community and honor everyone fighting invisible illnesses.”Support my half marathon
A little more context
Hi. I’m Kelsy.
Most days I’m somewhere between a training run, a book idea, an appointment, and whatever needs to get done before dinner.
I live with POTS, MCAS, hypermobility, and fibromyalgia. I talk about that because it is part of my life, not the whole thing.
This site is where I keep the useful things, the things I make, and a running record of what I’m learning.
If you’re new here
Start wherever you are.
You do not need to read everything. Pick the thing that sounds most useful right now.
The library
Things I’ve made.
Books and tools for the days when you want more than a thirty-second video.
Books Three places to begin
Practical things Download, print, or keep open
The small shop
A few things for the club.
Three simple pieces from the Etsy shop. Nothing complicated.
A few regulars
Things I actually use.
Occasional emails
The Chronic Illness Club.
I do not send emails every week. If I have a useful resource, a book update, or something I keep thinking about, I’ll send a note.