In ways, I find hold'em more addictive than sports gambling, so be careful. I sometimes play hold'em to take my mind off a big football bet while the football game is going on.
It doesn't have to be no limit; pot limit is also very invigorating. You quickly forget that you have only risked $20, $30, or $50 to enter and view your stack of 1K in chips as your own money on the line.
And it can be every bit as brutal as a bad football beat. You can play a great hand perfectly and someone wipes out your ass out on the river and you are gone (gone until the next tournament).