Concussion, heatstroke, and hypothyroidism are just 3 conditions that you may mistake for dehydration. Learn about overlapping symptoms and when to see a doctor.

Surprising factors can increase your risk of dehydration in the winter. Here’s how to spot the signs you’re dehydrated and make sure you’re getting enough H2O when it’s chilly out.

Winter is often associated with coughs, colds and dry skin. Dehydration rarely makes that list. Yet neurologists warn that winter dehydration is a quiet but serious risk, especially for brain health.