If I'm traveling with someone, I'll stop every 2/3 hours. But if I'm by myself (and was still in my 20s)? I'm going to optimize every second (Gatorade bottles FTW). No reason other than to say I did...
Done that plenty myself, but eventually I figured out that being sedentary that long starts to affect my alertness.
Getting out of the car and getting the blood pumping makes me much more alert for the next hour or two. At first I didn't want to think about that meant about how alert I wasn't for the previous hour. Now it's kind of hard to ignore.
