The hairs on the back of my neck stood up as he spoke. I could feel my heart rate increase slightly as the excitement coursed through me at this discovery of why travel is so addictive.

I’d always known that newness – new places, the anxious anticipation of stepping off an airplane in a faraway land, the novelty of trying a new food, and the humbling feeling of discovering a new culture – gave me a shot of dopamine, but I never realized that there was concrete science behind it.

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