I know if one has more fat then he won't be able to see the veins/arteries/blood vessels as easily. Now what makes people more vascular? Certain supplements increase blood flow, and therefore forcing more blood thru the veins. Prior to that, is it all genetics? I know I have narrow veins, but am more vascular than before. There are people whose veins are very noticeable. Do people who are in better cardiovascular shape have better vascularity also?
It seems that bodybuilders have veins in places that normal people don't. Are these called 'capillaries'? And high high reps would promote the amount of capillaries?
Please comment and correct me if I am wrong. I like to increase my vascularity and I know by leaning out that would help. Also things like NO2, PH, etc would help. What else?