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A viral fever refers to any fever that results from a viral infection, such as the flu or dengue fever. While most viral fevers resolve on their own within a day or two, some are more severe and require medical treatment. If your temperature starts reading 103°F (39°C) or higher, it's time to call a....

Simple difference, An ECG checks your heart’s rhythm. An echocardiogram shows a live picture of your heart.

Some cancer treatments, like chemotherapy or radiation, can cause side effects like nausea or fatigue, but it’s not the same for everyone. If you’re feeling sick, talk to your doctor—they can prescribe medicines to help with nausea or suggest lifestyle tips to boost your energy. Eating small, freque....