Grandparents have always been important. Today, they're even more important. In busy, two-career and single-parent families, an involved grandparent goes a long way to filling a void for children. In extreme situations, the courts have found it's often a grandparent who can reach a troubled teen when no one else can.
Here's how to enlarge your veins and arteries for plasma donation: 1  Heat up your arm. When veins become overheated, they expand, and draw closer to the skin. 2  Hold off on drinking and smoking. Both smoking and drinking alcoholic beverages makes veins and arteries smaller and harder. 3  Hold off on the caffeine.
Because veins are carrying oxygen-poor blood back to the heart they have a much less strong blood pressure than arteries that carry blood from the heart. Arteries have to have thicker walls because of the greater pressure on them.So it is easier to use veins, and less dangerous.f someone were to try to draw blood from one of your arteries, it would literally squirt out every time your heart beats. Plus, arteries are typically deeper within your body than veins (veins are much easier to get to when taking blood). Source(s): Nursing major.