What was the average lifespan of a gladiator fighting in the arena? Did they train similar to today’s athletes?

by Rafa101010

What would their daily lives look like? Did they have regular jobs and fight in the arena for money and fame? Additionally If anyone has seen the show Spartacus on Starz, does it accurately depict what the life of a gladiator would be? Thank you!

Dinocrocodile