Hidden Signs of Dehydration That Aren't Just Thirst
37. Infrequent Urination

This is an obvious sign, but one that is often overlooked in the hustle of daily life. The body’s ability to filter waste and maintain fluid balance is directly linked to urination. When you are properly hydrated, you will urinate every three to four hours. However, when you are dehydrated, your body will conserve fluid, leading to less frequent urination. If you find yourself not urinating for several hours, it's a clear signal that your body is in a state of fluid conservation and needs to be rehydrated.
38. A Change in Body Temperature Regulation

A key function of water is to help regulate your body's temperature. When you're well-hydrated, sweating is an efficient way for your body to cool itself down. However, when you're dehydrated, your body's ability to sweat is compromised. This can lead to an increase in your core body temperature, making you feel uncomfortably hot and flushed, even in a cool environment. This is especially dangerous during exercise or hot weather. Recognizing this change in your body's thermostat is a clear signal that your internal systems are struggling and need fluid to function properly.