You expend a lot of effort at the airport: walking and sometimes running to get your flight ticket or checking your bags, carrying your luggage -especially when they are heavy or you have lots of them- also waiting in long lines can get you exhausted.
Very often, you forget to drink water when you are at the airport due to all the things you need to do before getting on your seat, and this lack of water in your body is the main reason that leads to dehydration. What’s worse, when you get dehydrated you also get bad breath.
Therefore, make sure to always carry a water bottle in your hand so that you will not forget about drinking water. Also, avoid drinking coffee and other caffeinated drinks, coffee doesn’t substitute for water, on the contrary, it will make you even dehydrated and cause bad breath.