Deadly heart attacks are more common on a Monday

Side note: there is also a stress-induced heart problem called tako-tsubo cardiomyopathy (aka 'broken-heart syndrome'), which also seems to be more common on Mondays.

It's caused by sudden stress (e.g. bereavement, illness) which leads to weakening of the heart muscle, causing the heart to bulge out at the apex. It's named 'tako-tsubo' because the heart starts to resemble a round vessel used in Japan to catch octopuses.

https://en.wikipedia.org/wiki/Takotsubo_cardiomyopathy

> causing the heart to bulge out at the apex.

I dont know about bulging but when I experienced my first break up in the 20s, I literally felt a hole in my heart for many days. It was a surreal experience, for some reason my mind was just telling me that there is nothing there where my heart should be.