Ejection fraction (EF) measures how well the heart pumps blood. A normal EF is 55% to 70%, meaning the heart pumps out at least half of the blood in its left ventricle with each beat. An EF below 50% ...

Sign up for our newsletter and get the latest stories delivered to your inbox.

If you multiply both the numerator and denominator by 4 you find the equivalent fraction with a denominator of 100. You can see that ¹²⁄₂₅ written as a percentage is 48%. Another method ...

Although there is between 8 mg and 20 mg of nicotine, only a fraction is inhaled – generally ... is therefore the equivalent of smoking one or two packs of 20 cigarettes. This shows the ...

Designer labels play hide-and-seek among the racks—a Calvin Klein blazer with tags still attached for $12.99, a barely-worn ...

Stores selling Russian products have spread across China, and now Moscow is seizing on the interest with a plan for a major ...

We're launching our Ban the Boards campaign to get rid of the scourge of cheap 'snappy' boards, which will travel more than ...

Law firms fear Trump orders could affect security clearances of lawyers who are military reservists How The Felix Project became London’s fourth emergency service District attorney lashes out at ...

Forget sandy beaches and overcrowded tourist traps—the ultimate spring break adventure might be hidden in plain sight at ...