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Heart rhythm problems, or heart arrhythmias, occur when the electrical impulses that coordinate your heartbeats don't work properly, causing your heart to beat too fast, too slow or irregularly. Hear...

Love can make your heart feel all aflutter. But if you're feeling weakness, shortness of breath or chest discomfort, it may be atrial fibrillation. Learn more about this treatable condition.

Questions about bullying are pretty universal, but what about answers? Well, they are a little more complex.

Vaccines help your body build up the ability to fight off a virus. A vaccine may not prevent you from getting the COVID-19 virus. But if you do get it, the vaccination may keep you from becoming serio...

Erectile dysfunction, or impotence, is the inability to get and keep an erection firm enough for sex. Having erection trouble from time to time isn't necessarily a cause for concern. If erectile dysfu...

Erectile dysfunction, or impotence, is the inability to get and keep an erection firm enough for sex. Having erection trouble from time to time isn't necessarily a cause for concern. If erectile dysfu...

You hear it called “pulse ox.” You see hospitalized patients wearing it — a plastic clip with a light attached to their finger. What is pulse ox? A pulse oximeter helps assess y...

Erectile dysfunction, or impotence, is the inability to get and keep an erection firm enough for sex. Having erection trouble from time to time isn't necessarily a cause for concern. If erectile dysfu...

You hear it called “pulse ox.” You see hospitalized patients wearing it — a plastic clip with a light attached to their finger. What is pulse ox? A pulse oximeter helps assess y...

You hear it called “pulse ox.” You see hospitalized patients wearing it — a plastic clip with a light attached to their finger. What is pulse ox? A pulse oximeter helps assess y...