I have started to notice that long trips on the interstate (speeds 75MPH or higher) really leave my head/ears feeling fatigued and worn. No different than flying on a plane and hearing the engines humming away the entire time. Admittedly my Toyota truck with AT-looking tire tread isn't helping the situation, but I've gotten similar outcomes in smaller crossover SUVs and some cars. Road and engine noise are quite high at interstate speeds. When I fly I typically wear noise cancelling Bose earbuds, so I gave those a shot while driving and was surprised how well it works. 90% of the droning sound is blocked, I can still hear music playing on the radio, and I can still pick up outside noises. The earbuds are just dangling in my lap with the noise cancelling turned on - not plugged into anything so it's not as if I'm oblivious to the world. Are there any better approaches to what I'm doing besides making my next vehicle purchase a Cadillac with heavy noise dampening? I do plan on going with a quieter tire as well once my current set wears out.