Doctors are warning that dehydration is a significant health risk not only in summer but also during cooler months, often going unnoticed. Reduced thirst, less sweating, and indoor environments contribute to lower fluid intake, increasing the risk of kidney stones, UTIs, constipation, headaches, and fatigue. Subtle signs like dark urine, dry mouth, dizziness, and tiredness are frequently overlooked and misattributed to other causes. Experts emphasize that the body's fluid needs remain constant year-round, urging vigilance against this 'silent problem'.