I live in Montreal and the roads here are awful due to our very hot summers, grueling cold winters and badly constructed roads due to corruption in the construction industry here. Destroyed, pothole filled, cracked up and all around horrible roads are pretty much the norm. There's also an abundance of speedbumps and mini metal speedbump things everywhere.

Is all this safe for the brain, like driving fast over these roads and conditions? I know it can cause symptoms, maybe a headache in even healthy people but does it cause damage?