No one wants to deal with a viral infection. Like flu, COVID-19 can still pack a wallop and knock you out of commission for several days. But even a mild infection may leave its mark on your blood vessels…

Long COVID has left some people with perplexing symptoms. But the most surprising may be how, in adults with only mild infections, it appears to steal their ability to keep fit, leaving them with extreme fatigue and pain even weeks after a single round of exercise…

Looking back, researchers have been able to see the effects of a COVID-19 infection on the heart, and how it strikes at the very power source of cells that are responsible for helping the heart keep ticking. Here’s what they’ve learned…

Long-haulers are people previously infected with COVID-19 who continue to live with symptoms like fatigue, headaches, brain fog and shortness of breath. But COVID isn’t the only virus that can affect the body in strange ways, and blue legs don’t get much stranger…

Long-COVID is no joke. Almost half who suffer from it experience crushing fatigue they say impacts their quality of life. Researchers hot on the trail of why it happens and how to relieve it may have hit a nerve… one that has a history of dysfunction related to other viral infections.

One of the most common treatments for COVID-19 is the antiviral Paxlovid. While it’s reported to be effective at shortening the severity and duration of the virus, it has its drawbacks — among them a nasty side effect known as “Paxlovid mouth” you’ll need this advice about…