Researchers in Cleveland have made a major breakthrough in our understanding of how a devastating disease cripples even the strongest among us. In this week’s Exploradio, WKSU’s Jeff St.Clair looks at advances in treating the currently incurable ALS. It’s one of the most famous farewells in sports history. On July 4, 1939, the Iron Horse, Lou Gehrig told a sold-out crowd at Yankee Stadium that after playing 2,130 consecutive games, he was calling it quits, a career shortened by a disease that