I gave blood for the first time when I was a senior in high school. They reccommended 8 hours of sleep and a full meal before you donate blood. However, the night before I donated I was in NYC and got about 3 hours of sleep and didn’t eat anything. The process went smoothly anyway, and I wasn’t nervous about giving the blood. I tried giving blood at Baruch earlier in the year and couldn’t get a good time to do it. So I got the signature and will be donating in December.