What's the signal?
I have not read the article, but my father’s heart is showing signs of muscle redevelopment (blood vessel propagation) in the years following a massive infarction which would have killed him if mom had not been standing there when he coded and called in the crash team.
This story is inaccurate. C14 naturally occurs and every living thing has C14 in it. When the animal dies, the C14 is not replaced and decays. That is the basis of Carbon dating.