Deadly heart attacks are more common on a Monday

I definitely felt Mondays on-call were much busier in the hospital. I always thought this could be due to patients spending weekends with family, not wanting to cause a fuss and maybe ignoring symptoms of cardiac chest pain until it evolves into a serious heart attack (STEMI). Also, they may be waiting to see their GP on Monday morning and then get referred to hospital (although less likely with STEMIs).

I also remember the time between Christmas and New Year being very busy - I thought for a similar reason - people understandably just don't want to be in hospital for Christmas.

I wonder if modern smartphones lay the groundwork for people knowing they're on the cusp of a heart attack.

E.g., using sensors that are cheap, and are less invasive than EKG electrodes. Kinda like the way Apple watches can now continuously monitor stuff

Does an Apple Watch actually tell you if you are?

It monitors for atrial fibrilation using a single leak EKG I think.

It is very clear about the fact it cannot detect a heart attack though.

Then there’s these slightly more sophisticated things: https://store.kardia.com/products/kardiamobile6l