Here's something we've known for years being reported in major news publications. Pretty much every major study on this has shown the same results. A cumulative damage effect is shown with a virus that can attack our vascular system, immune system, brain, and all our major organs.

And people whose ability to focus or concentrate on anything is shot are blaming social media and vaccines.

The study, of nearly a half-million people under 21, published Tuesday in Lancet Infectious Diseases, provides evidence that Covid reinfections can increase the risk of long-term health consequences and contradicts the idea that being infected a second time might lead to a milder outcome, medical experts said.

Here's another article about the study in time:

“The message is about how seriously you should treat your potential risk of getting a second COVID-19 infection,” says Chen. These results, along with other research, suggest that there might be a cumulative harmful effect of repeat COVID-19 infections on the body, and scientists are trying to better understand those potential long-term effects. Chen is also continuing the work to study what effect getting vaccinated following a first infection might have on not just the risk of additional infections, but on the development of Long COVID as well.

I would be surprised if the risk didn't increase with age.

And a relevant post to someone who predicted this would happen early on:

When I told everybody here and argued with many overly confident people that the evidence appeared to me to show that Covid was a serious and exceptional infection, and that the long Covid risk would remain and probably increase after infection, I was accused of not understanding that immunity builds with infection.

I tried to explain that the virus harms immunity and was called an alarmist by people that had more advanced credentials than I, whilst I was still a medical student.

...

It’s hard to convey the indignant rage I feel over my future- and your futures- having been robbed from us.