If they really wanted to go by the Science the Mandatory 10 Hour Break contributes to Driver Obesity and Alcoholism.
Ya see most "Normal" people only sleep 4/5/6 hours ...
The rest of that time Drivers are stuffing their faces watching television or they go in the store and buy beer..
Or me just sitting here slamming Coffee and I'll be dead tired later running through a big city when I was good enough to go now.
I'm also stuffing myself full of Junk Food outta boredom