There are a number of ways people can become more veiny than what they naturally are:
1. lose body fat. if you do lots of cardio you will lose body fat and less fat means your veins show more as that layer is removed.
2. Drink lots of water this can help to increase blood circulation.
3. Build muscle, by doing weights you will build muscle mass as well as losing fat. if your muscles are bigger then you push the veins up and towards the skin making them show more.
so remember exercise and build muscle and this will make your veins more visible.
some people are naturally veiny it can be genetic.
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