Taken the other day at the gym. If your veins do this, you should really down about a gallon of water. Which is what I did immediately after taking this. (You know you’re a blogger when you take a pic of your dehydrated veins before rehydrating them…)

UPDATE: Actually, Meg says that big veins are good and mean that you are VERY hydrated. Or have been drinking heavily. (Which I hadn’t been at the gym.)