The mother of the Jonas Brothers, Denise Jonas, has revealed she recently suffered a stroke. "It was what you call a basal ganglia [because] it was in the basal ganglia area of my brain, which affected my cognitive thinking, my speech [and] reasoning," Denise, 59, said in Us Weekly's exclusive sneak peek of the "Got It From My Momma" podcast. "At certain times I would have difficulty with my speech." The basal ganglia is a group of structures near the center of the brain that forms important connections, according to the Cleveland Clinic.