Cold weather, hormonal chaos? A doctor explains why PCOS feels harder in winter Many people with PCOS notice worse symptoms in winter, from weight gain to irregular periods. A fertility specialist explains how cold weather affects hormones, insulin resistance and mood, and shares practical ways to manage PCOS better during winter. “Regular daily movement matters more than intense workouts,” Dr Goyal explains. “Small seasonal adjustments now can quietly strengthen reproductive outcomes later.”For individuals with PCOS, winter management isn’t about fighting the season; it’s about working with it, informed and prepared.