While the notion of being stressed on a vacation seems like an oxymoron, many of us experience a different sort of stress during holiday excursions. Replacing the stress of meeting deadlines or completing projects during our daily lives, holiday stressors include those related to air travel, exhaustive travel itineraries and tension between family members or the travel party. Stress reduces the body's natural immunity and creates the conditions that attract diseases from the atmosphere. Managing your stress levels, therefore, is super important to avoid falling ill.