Giving blood is important because around 41,000 blood donations are needed every day to help those in need, whether it's accident victims who may need 100 pints, cancer patients who numbered over 1.6 million last year, or to replace the 12,200 donations lost during Hurricane Sandy. While 38% of Americans are eligible to donate through the simple 4-step process, which takes only around 12 minutes, donations are crucial as the need for blood is constant.