i just learned something quite valuable. if you eat well " drink lots o' water before giving blood, even if it's within hours, the process goes much more smoothly.
the past couple times i've struggled with giving blood in one aspect, or another - not enough iron, tough veins to find, or slow blood flow. today, i was in " out in minutes...'twas awesome. just to make sure i was right, i asked the nurses if it was because i ate " drank, and they confirmed my suspicions.
people - eat " drink water before you give blood! making that needley process easier is well worth it.