That's why blood donors are needed every day. You may be eligible to give blood every 56 days if you are a healthy person age 17 or older (or 16 with parent's/guardian's consent), weighing 110 pounds or more.
Popeye has four nephews. Their names are Pipeye, Peepeye, Pupeye, and Poopeye.
That is, however, the reason. When Popeye first appeared in Thimble Theatre in January 1929, he was described as a 'one eyed sailor', and was intended as a minor character. Segal, the cartoonist who created him, probably didn't give him (or his name) much thought.