iiinova — where your digital self keeps evolving

Alan Heldman

@alanheldman.bsky.social

Interventional cardiologist; cell-therapy founder; learning & investing in digital health. Sprinter. alanheldman.substack.com

Posts Replies Media

Alan Heldman @alanheldman.bsky.social · 31/03/2025

What do Jimmy Buffett lyrics, ancient Egyptian hieroglyphics, WW I trench warfare, and WW II dogtags have to do with curating your own health? This story kicks off my thinking about the idea of a Personal Health Record. Follow along if you’re interested! open.substack.com/pub/alanheld...

Tetanus cases per thousand wounded soldiers in British home military hospitals after being wounded in the manure-rich trenches of WW I France.
With the introduction of tetanus anti-toxin in the middle of the second month of this chart showing Sept 1914-Nov 1916, the case rate dropped.

000

Alan Heldman @alanheldman.bsky.social · 18/03/2025

When you exercise, your heart muscle needs more oxygen, so the blood flow in your coronary arteries can go up 500%! Exercise is generally good for your health & reduces the risk of heart disease, but if you have atherosclerosis plaque in those arteries, intense exertion can trigger a heart attack.

110

Alan Heldman @alanheldman.bsky.social · 03/03/2025

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...

100

Alan Heldman @alanheldman.bsky.social · 03/03/2025

I'm predicting a bunch of new age-group world records in the Women's 4x400m relays. Just last week, a W65 squad of Cheryl Bellaire, Julie Hayden, Susan Lloyd, and Elizabeth Deak clocked a world record 5:15.97 to slice nearly five seconds off of the existing indoor 4x400 record.

100

Alan Heldman @alanheldman.bsky.social · 06/02/2025

Linus Pauling (1901-1994) was the only person who ever won two unshared Nobel Prizes — the prize in Chemistry in 1954, and the Peace Prize in 1962. Over breakfast, he gave our little group of medical students some advice about vitamin C and the search for truth. open.substack.com/pub/alanheld...

111

Alan Heldman @alanheldman.bsky.social · 27/12/2024

How do you decide what product claims to believe? These are personal choices, but we can all use some help when it comes to thinking about our own health.

100