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Vascularity (appearance of veins in the arms, chest, etc) is a
complete function of body fat percentage and muscle mass content
(more muscle/less fat = greater vascularity). In fact, when I had a
43 inch waist and 20%+ body fat, I had no veins showing in my arms,
chest, etc. As I lowered my body fat percentage into single digit
levels, I noticed the appearance of veins in my forearms, chest,
biceps, etc. As body fat decreases, the space between skin and
muscle decreases, thus veins become completely visible. More muscle
also aids in this process, as additional nutrients are needed due to
the larger muscle groups, and thus the veins appear more pronounced. |