How Can I Help My Grandchild With a D H D?

Mam and wife writes, my husband has a d h d, an anxiety disorder. So do both our children. He believes anxiety meds are optional. How can i get him to uner stand this belief in all areas as well as his own? There's at least a 50 cent likelihood that your grandchild might also have a learning disability along with their a d h, d m. Request testing. And if dhat doesn't work, then you might want to go to one of my books for help.