Is it just yoyo? Or do other repeated hand motions also do this? This is a serious health concern of mine.
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· 7 years ago
I think it's because the string of the yoyo kind of digs into the flesh, closing off the veins. If you do that a lot, apparently the veins just go away. So as long as you don't cut off your blood supply on a regular basis you should be fine I think
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