Newsday: Kellenberg’s Kathleen Healy breaks through with steeplechase win at CHSAA championships

By Newsday’s Jordan Lauterbach: That sound you hear is the collective shudder of thousands of high school track and field athletes who know that dangerous word all too well. It’s the moment where self-improvement stops and frustration starts. There’s no regression — there just isn’t any improvement. In a sport where constant betterment is the…