What exercise method can make the blood vessels on the hands thicken?

It is generally believed that the forearm is not easy to practice, and the incremental practice method that is repeated many times must be adopted. It is necessary to constantly increase the load and let the forearm develop. In forearm practice, how to arrange the rhythm of training class is a more important problem. Forearm exercises should be carried out slowly and rhythmically, and the interval between groups should be minimized.

When practicing, the forearm should be in the "pump effect", which can make blood flow into the forearm and help blood flow into the forearm muscles. After finishing one set of exercises, pause for a few seconds, shake your arms to relax your muscles, and then proceed to the next set of exercises.