If you’ve got little kidney stones and you want to pass them before they turn into BIG kidney stones . . . like, ones that might require ER trips or surgery . . . there’s a new solution: inject yourself with 100 cc’s of FAMILY FUN, stat.A new study by Michigan State University found that riding ROLLER COASTERS can help your kidneys push out the stones while they’re small.It works especially well if you go on really bumpy roller coasters, and sit toward the back.