That all these heart related issues is in fact biblical or prophetic to be more accurate.
Of all the things that Jesus said would take place before His return, only one hasn't been fulfilled. Which is "men's hearts failing them from fear, and for looking after those things that are coming on the earth.
I propose that it is currently being fulfilled. Fear is what drove so many to accept a toxic poison. Fear of death, fear of losing a job, fear of being ostracized etc. As a result it's causing so many heart issues, that ultimately is resulting in their death.
This flood of propaganda is what's been unleashed on this earth. All they're selling is fear and deception. Most have fallen under the strong delusion.
So I believe it is possible that this one sign that Christ mentioned is unfolding right now. Not to mention several other prophecies in scripture that appear to be taking place currently as well.
I'm sure most won't agree, that's fine. Just thought I'd plant that seed in someone's mind to think on. Perhaps God will give the increase and cause the seed to grow.
That's my hope anyways, God bless reader.
When read in the most literal sense, I see a parallel with that verse and the heart failure we're seeing caused by the jab which people take out of fear.
I'm not saying that's what He meant, that's certainly not for me to say and I don't want anyone to misinterpret Scripture because of my own idea, but it's food for thought.