Thirst is a physiological response that helps maintain the body's water balance by signaling the need to drink fluids.

Angiotensin II is a hormone that is produced in response to decreased blood volume or blood pressure. It stimulates thirst and also causes vasoconstriction, which helps to increase blood pressure.

Xerostomia is the medical term for dry mouth, which can be caused by a variety of factors, including dehydration, certain medications, and medical conditions.

The average daily fluid intake for a healthy adult is approximately 2-3 liters, although this can vary depending on factors such as activity level, climate, and individual needs.

Dehydration can cause the urine to become dark-colored and concentrated, as the body attempts to conserve water.

Polydipsia is the medical term for excessive thirst, which can be caused by a variety of factors, including diabetes, certain medications, and medical conditions.

Chronic dehydration can lead to a variety of serious health consequences, including kidney failure, heart failure, and seizures.

Dysphagia is the medical term for the inability to swallow, which can be caused by a variety of factors, including neurological disorders, esophageal disorders, and cancer.

Older adults are at increased risk of dehydration due to a combination of factors, including decreased thirst sensation, impaired mobility, and reduced fluid intake.

The recommended daily fluid intake for children varies depending on age and activity level, but is generally around 1-2 liters.

Excessive fluid intake can lead to a variety of health problems, including water intoxication, electrolyte imbalance, and hyponatremia.

Edema is the medical term for the condition in which the body retains too much water, causing swelling in the tissues.

Hyponatremia can lead to a variety of health problems, including seizures, muscle cramps, and nausea and vomiting.

The recommended daily fluid intake for pregnant women is approximately 3-4 liters, as the body's fluid needs increase during pregnancy.

Dehydration during pregnancy can lead to a variety of health problems, including preeclampsia, low birth weight, and increased risk of preterm labor.