Thirst is the body's natural signal for needing fluids, but excessive or persistent thirst can sometimes point to an underlying issue. Knowing the causes, how it's diagnosed, and the right treatment can help manage it effectively and keep the body properly hydrated. (Definition of thirst from the Cambridge Academic Content Dictionary © Cambridge University Press) Thirst , like hunger, is usually pretty cut and dry. You feel thirsty —usually because you've been sweating a lot or not getting enough fluids—drink water, and no longer feel thirsty . But what... Thirst is normally just the brain’s way of warning that you’re dehydrated because you’re not drinking enough fluid. But excessive and persistent thirst (known as polydipsia) could be a sign of an underlying problem such as diabetes.
