Sharing public spaces: You can get sick during and after travel for many reasons. One of the most common reasons is being surrounded by more people than usual, often “in enclosed spaces with others who may be passing things on to you when sneezing, coughing, etc.,” says Bawer.
Lack of quality sleep: Traveling can cause your immune system to kick into overdrive due to higher stress levels and lack of sleep. Changing time zones affects your circadian rhythm, which in turn affects sleep patterns. Not getting enough quality rest can weaken your immune system, so it’s important to prioritize sleep while you’re traveling.
Changes in diet: “Most people do not eat well-balanced or nutritious meals when they are traveling. Many will also increase the amount of alcohol they consume or other substances, which can increase our chances of exposure to pathogens and weaken the immune system,” Bawer explains.
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