COVID-19 is a respiratory condition caused by a coronavirus. Some people are infected but don’t notice any COVID-19 symptoms (doctors call that being asymptomatic). Most people have mild symptoms and ...

Once a virus infects your body, it can destroy healthy cells and make multiple copies of itself. The virus causing COVID mainly attacks the cells lining your airways. This makes it hard for you to ...

About 4 in 10 dental patients experience transient bradycardia or lower heart rates, which may lead to heart failure and cardiac arrest, while being administered local anesthesia under sedation. The ...

When you reach for a COVID-19 test, it’s probably because you’ve got a scratchy throat, runny nose, or cough. But those are far from the only symptoms that make Dr. Rohit Jain, an internal medicine ...

If a middle-aged man starts clutching his chest, sweating profusely, and gasping for air, everyone knows he's probably having a heart attack. It’s the “Bollywood drama” depiction of heart problems, ...

But how do you know if your cortisol levels really are too high? And what are the symptoms of high cortisol? Social media might have you thinking that face puffiness — being touted as “cortisol face” ...

A junctional escape rhythm is when the heartbeat starts in a different part of the heart than it should. This type of arrhythmia may not need treatment, but a doctor does need to investigate the ...

A variant known as KP.2 continues to dominate as the top cause of COVID-19 in the United States, and latest data from Centers for Disease Control and Prevention (CDC) show that its spread has become ...

Mononucleosis, or mono, can lead to a range of symptoms, including severe fatigue, fever, and a sore throat. However, symptoms typically generally resolve within around 2–4 weeks. Mono is a common ...