Could it be side effects from having gotten Covid or the Covid vaccine? I had gotten the virus 3 times even though I did get the vaccine and booster and now two-three years later I have vascular problems. I had it in my family tree but I did not suffer from it before. I think the virus turned on the genetic switch. Maybe that is what is going on in China.
Nobody's sure about the covid vaccination side effects though but one thing is for sure is that inheritance of any illnesses could come out anytime especially when you are getting older.
I have never heard about someone complaining about their health declining after they took the vaccination not even the old ones talking about those who are at the age of 60s to 80s.
Vaccinations against covid, in its essence little different from other, for many decades already familiar to the whole world vaccinations ! But someone decided to hype the topic, and supposedly "go against the system" and "world conspiracy". Now the leaders of the anti-vaccination movement have hundreds of thousands of deaths on their hands. Vaccines can give you a bad feeling the next day. But believe me 12 hours of unpleasant sensations, it is not 3 weeks in the hospital burning with a temperature of 40 degrees, panting and realizing that tomorrow you may not wake up. I myself ended up in the hospital because at that time we did not have vaccinations available yet. I've seen what a real pandemic is like. From the room where I was lying (for 6 people), 2 people went to the other side of the world, not coping with the virus, another still suffers from affected lungs....