my husband just noticed yesterday that when he raises his arms, the veins in his forearms sink in, when the lowers them, the veins come back. Arm has been aching up into his shoulder. Right side is worse than left
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I noticed that back in grade school. We had fun watching them do that. Your blood pressure is different at different heights in your body that's why they want your arm level with your heart to measure it. If you hold your hand above your head the blood drains down thus the saying if you cut your hand "hold it above your head".
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