Every day, blood donors help patients of all ages: accident and burn victims, heart surgery and organ transplant patients, and those battling cancer. In fact, every two seconds, someone in the U.S. needs blood. Donating is a generous thing to do. It helps people in need, and it helps people in your community. When you give, others live. Donating is simple, fast, and convenient. The donation process can take as little as 45 minutes of your time, but can make a lifelong difference for someone else.