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Photo Modified: Flickr / Nattu / CC BY 4.0

Whether you’re climbing to the top of the ship or stepping off and heading to the beach, a cruise is your passport to fresh ocean air. Breathing it in helps improve your mood, clean your lungs, increase your energy, strengthen your immune system and boost brainpower. But most of all, breathing in fresh air improves your mood. According to Good Relaxation, “the amount of serotonin is affected by the amount of oxygen you inhale. Serotonin can significantly lighten your mood and promote a sense of happiness and well-being. Fresh air will leave you feeling more refreshed and relaxed.”