Is mountain driving hard on a car?

I do lots of driving up and down mt hood for work but i want to get lots of miles out of my honda will driving up and down mt hood frequently (4-5 times a week) shorten the life of my car? I know it would if i was just up hill it would, but you also go down hill which is low stress. I change the oil every 5k miles and its a 2011 hch btw

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