I find driving exhausting. Not while driving, but afterwards. Even a 15 minute drive can be too long for me and can bring on a crash. So, I avoid it as much as I can. Driving involves a lot of mental concentration, fast reflexes and I’m sure increases in adrenaline or cortisol. Eye hand coordination and some physical activity. While driving we don’t realize the amount of energy we are expending. So, I let others drive.