LIVE MARATHON: 7AM on WBZ-TV; 9AM on WBZ Radio; Race, Finish Line & Heartbreak on
Live Blog | Mile By Mile Guide | Road Closures | Best Spectator Spots | Forecast | All Marathon Coverage

'CrossFit' Safe For Children?

It's an intense workout that's popular with adults, but many kids are giving 'CrossFit' a try.  Should kids be working out that hard?  Kerry Connolly reports