[dropcap]T[/dropcap]eaching techniques on how to grapple and restrain an opponent as it relates to jiu jitsu is a daily experience for Joao Crus.

Crus, who owns a jiu jitsu studio in the Dripping Springs area, has taught the martial art for close to two decades.

But it was helping instruct a student with attention deficit hyperactivity disorder (ADHD) that changed how Crus approached his instruction.

Several years later and Cruz now uses jiu jitsu to help develop self-esteem, communication and s...