Health experts emphasize the importance of staying hydrated during winter months, highlighting its role in skin health and immunity. Yadira Santiago Banuelos from Purdue University explains that people often underestimate dehydration risks in colder weather, as thirst responses weaken and dry air contributes to moisture loss. Symptoms of dehydration can range from dizziness to serious kidney issues. The recommended water intake varies, with men needing about 13 cups and women about 9 cups daily, with increased needs during pregnancy or breastfeeding.