Ejection fraction (EF) measures the amount of blood pumped out of your heart's lower chambers, or ventricles. It's the percentage of blood that leaves your ventricle when your heart contracts. The ...

Your doctor says everything looks fine, but you still feel terrible. The problem might not be your health but how labs define “normal.” Understanding the difference between normal and optimal could ...

Labs calculate normal by testing everyone who walks through the door, including patients with undiagnosed conditions and chronic diseases. The middle 95 percent becomes the reference range, whether ...

The Pakistan Meteorological Department (PMD) on Monday said that, according to the latest numerical analysis of weather data, temperatures in the coming days will stay within the “normal winter range, ...

Thyroid-stimulating hormone (TSH) helps control how much thyroid hormone your thyroid makes. High TSH usually means hypothyroidism, while low TSH points to hyperthyroidism. A typical adult TSH target ...

Your home can feel stuffy, chilly, or perfectly “normal” even when the thermostat barely moves, and humidity is the quiet reason why. Once you understand the narrow band of moisture that keeps air ...

Federal income tax rates range from 10% to 37%. Find out how they work and which brackets you're in. Many, or all, of the products featured on this page are from our advertising partners who ...

Prediabetes means your blood sugar is higher than typical but not high enough for a type 2 diabetes diagnosis. You may also experience insulin resistance and sometimes dark skin patches with ...