Zac Efron, 36, has opened up about the 'toll' his training for The Iron Claw took on his body - but the Hollywood actor has now found an innovative way to recover

Zac Efron has revealed that he is undergoing stem cell therapy to treat a back injury he sustained while filming The Iron Claw . The 36-year-old star opened up about the treatment on Instagram, sharing how he sought help from stem cell specialists after months of physical therapy failed to fully heal his injury.

Last year, Efron said he was surprised by how physically demanding his training for 'The Iron Claw' turned out to be.

Zac Efron has been having stem cell therapy to treat his injured back.

Zac Efron turned to stem cell therapy to recover from injuries he sustained while playing wrestling legend Kevin Von Erich in The Iron Claw.The 36-year-old actor shared that the physically

Zac Efron says stem cell therapy has worked wonders on his damaged back. This college football season is still devoid of major upsets, but some teams have played tougher schedules than others. Boise State moves into the 12-team field after Northern Illinois lost in Week 4.