Donating blood provides a lifesaving gift. It’s a simple thing to do and can make a big difference in the lives of others.

Although an estimated 38 percent of the U.S. population is eligible to donate blood at any given time, less than 10 percent of those eligible actually donate, according to the American Red Cross. Many people don’t give blood due to misconceptions about the risks involved or their eligibility to donate.

Here are five common myths about donating blood—and the real facts: