My veins are increasingly becoming more and more blue all over my body (arms, chest, face, legs, sides) ever since i started rock climbing and working out. it seems to be getting worse, why? how can i stop it? will it go away once i'm not active?

Vein prominence ?: Exercise can cause veins to become dilated and therefore more visible. This type of dilation of superficial veins tends to be permanent, and does not completely "go away" when your exercise program is decreased.

Visible veins.: There are many reasons for veins to appear prominent. Straining, exercise, hydration, increasing temperature, hormones and genetics all can affect size of veins. Thin individuals and fair skin also make veins more obvious. Most likely your increased exercise routine has contributed to your increased veins.Moat likely the veins will diminish as the exercise decreases but no one can say for sure.