Your blood gives doctors all kinds of clues about your health. It's normal to be nervous about this test — no one loves needles. But most blood draws take less than a minute. This video shows what happens.
By now, you've probably been on the receiving end of a needle. But have you ever wondered what it's like to take a person's blood? In this video, Yashira, a phlebotomist, talks about some of the skills needed to do her job.