Simply Younger
Feel younger by removing what’s blocking the body from doing what it already knows how to do.
I’m Dave Prosser. I’m 50. I’m not a doctor, not a guru, and not here to sell you a miracle. Just a dad and lifelong learner documenting what actually moves the needle on energy, clarity, and the boring-but-real science of feeling younger — in real time, with the mistakes left in.
Free. A few minutes. See what your daily habits say about how your body is ageing.
Pick your path
Four lanes. Read whichever one you came here for.
Performance & Longevity
In the best shape of my life at 50
Muscle after 40, recovery that actually works, brain health, daily movement, four years of WHOOP data, monthly body-composition scans, and the training decisions that matter when your body stops being forgiving.
Mindset & Standards
Why motivation is a lie
Standards beat motivation. Systems beat goals. Discipline beats feelings. The mental side of staying sharp after 40 — and the traps most high performers fall into.
The Journal
Real-time experiments
Fasting logs, weekly check-ins, book notes, and the messy human side of running an experiment on yourself. Published live. Mistakes left in.
Hydration & Water
What’s actually in your water
The science of cellular hydration, water quality, and why drinking more isn’t always helping. The research you won’t get from wellness influencers.
Latest from the Journal
Get the Simply Younger daily email
One short email a day: the newest post, what I’m testing, and what’s actually working for men over 40.
Join free →Start here
How old is your body, really?
Your birth certificate gives one number. Your sleep, training, stress and daily habits tell a different story. The free Body Age Challenge takes a few minutes and shows you where you’re ageing well — and where you’re quietly losing ground.
Take the Body Age Challenge →