One of the annoying things about the “just the flu” crowd is that, even if #COVID19 were just the flu (and it is not), IT WOULD STILL BE A SERIOUS CONCERN since we get COVID 12-18x more often than the flu. And influenza is also a very real cause for worry.
More evidence links flu infection to heart attack risk
https://www.health.harvard.edu/heart-health/more-evidence-links-flu-infection-to-heart-attack-risk