Hiking on vacation is a perfect way to boost your brain health. The combination of exploring new environments, being surrounded by nature, and maintaining moderate physical activity reduces stress, generates neuron promoting BDNF in the hippocampus, and stimulates every region of the brain, which creates the optimal scenario for neuron growth. So, be sure to include a hike, bike ride, or other moderate activity along with trying new food and enjoying new scenery in your summer vacation plans! And because laughter is also a brain booster, here is a joke to make you giggle. Where do brains go on vacation? The hippo-camp-us.