It's kind of funny hearing all the posts about how physically demanding our trade is.Having worked in masonry,roofing,drywall and some others.When I began my career 20 some years ago in electrical work I found it very easy physically.I also noticed there were more old guys in electrical work than most other trades.That being said I learn something new almost daily.When you think you know it all in this trade.You better put your tools down quick.Because it will not be pretty.Then again coming from a desk job you may not make it a month.Showing respect and doing as told will always serve you well.

Good luck!