Alan Heldman
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alanheldman.bsky.social
Alan Heldman
@alanheldman.bsky.social
Interventional cardiologist; cell-therapy founder; learning & investing in digital health. Sprinter.
alanheldman.substack.com
I’m skeptical about 99% of “longevity” but there’s good reason to track VO2max in your health notebook.

I’m not selling supplements — I’m giving away good ideas!
September 10, 2025 at 1:07 PM
This is the “exercise paradox.” How can you figure out your risk, and what can you do about it? Should you get a coronary calcium score CT scan before you start exercising? Get the facts in my latest article. open.substack.com/pub/alanheld...
I Want To Exercise
Do I Need A Cardiac Calcium Score CAT Scan First?
open.substack.com
March 18, 2025 at 7:57 PM
What's happening? It is a powerful story: US women who are 65, 70, or older had limited opportunities for organized athletics as students. Title IX (1972) was the beginning of change. Masters Women's individual and relay records have begun to fall. Watch what happens over the next few years!
March 3, 2025 at 5:55 PM
Recently I looked at age-group records for sprints, middle distance, and long distance races. Like the rest of us, even the best in the world get slower with age. But it seemed like the Women's 4x400 was an outlier. If you're a data nerd, the full analysis is here: open.substack.com/pub/alanheld...
March 3, 2025 at 5:55 PM
How?
February 23, 2025 at 10:33 AM
How I think about whether to ingest some Buckyballs. open.substack.com/pub/alanheld...
Please Don't Eat the Nano Soccer Balls
What level of evidence should we expect before we take a supplement? How I start to learn about health claims.
open.substack.com
February 18, 2025 at 8:11 PM
As a physician scientist who is trying hard to maintain peak athletic and mental performance as I age, I have looked — and I don’t see any shortcuts.
February 18, 2025 at 8:11 PM