Do Humans Fatten Up for Winter? The Science of Seasonal Weight Gain
                                
                                
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                                    4 min read                                
                            
                                Studies have found that many adults gain a small but consistent amount of weight during the colder months, a trend that can accumulate over time. This consistent seasonal fluctuation leads many to wonder if humans possess a primal, hibernation-like instinct to build fat stores for winter.