Why do I eat less when I'm on vacation?
                                
                                
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                                    4 min read                                
                            
                                According to a study on the effect of environmental factors on appetite, higher temperatures and altitudes can both lead to reduced feelings of hunger. This helps explain why you might ask, "why do I eat less when I'm on vacation?" The phenomenon is often a surprising combination of stress reduction, increased physical activity, and changes to your daily eating routine.