Are you a pre- or post-Thanksgiving Christmas decorator? While the timing may vary, the act of decorating for Christmas, especially with lights, can significantly uplift mood and promote well-being during the darker winter months. Research suggests that Christmas lights enhance happiness by boosting serotonin levels, evoking nostalgia, and fostering feelings of connection and tradition. The playful and creative aspects of decorating also spark joy and mindfulness, helping reduce stress. Though Christmas lights aren’t a cure-all, their positive effects remind us to find meaningful ways to stay connected, creative, and joyful during the season.