Excessive thirst, scientifically called polydipsia, is a symptom that can appear for simple reasons, such as after a meal in which too much salt was ingested or after periods of intense exercise.
However, in some cases, it can be an indicator of some disease or situation that must be controlled and, in these cases, it is important to pay attention to other symptoms that may arise, such as tiredness, headache, vomiting or diarrhea, for example.
Some of the most common causes of excessive thirst are:
1. salty food
Generally, eating food with a lot of salt causes a lot of thirst, which is a response of the body, which needs more water, to eliminate excess salt.
What to do: The ideal is to avoid eating foods with excess salt, because in addition to increasing thirst, it also increases the risk of developing diseases such as hypertension.
2. Extreme exercise
The practice of intense physical exercise, leads to the loss of fluid through sweating, causing the body to increase its fluid intake needs, leading to a sensation of thirst.
What to do: It is very important to drink fluids during and after exercise to avoid dehydration. In addition, the person can opt for isotonic drinks, which contain water and mineral salts, such as the Gatorade drink, for example.
One of the first symptoms that usually appear in people with diabetes is excessive thirst. This is because the body is inefficient at using or producing the insulin, which is needed to transport sugar to the cells, which ends up being eliminated in the urine, leading to greater water losses.
What to do: If you experience a lot of thirst accompanied by other symptoms, such as excessive hunger, weight loss, tiredness, dry mouth or frequent urge to urinate, you should go to the general practitioner, who will do tests to see if the person has diabetes, identify the type of diabetes and prescribe the appropriate treatment.
4. Vomiting and diarrhea
When episodes of vomiting and diarrhea appear, the person loses a lot of fluids, so the excessive thirst that arises is a defense of the body to prevent dehydration.
What to do: It is advisable to drink plenty of water or take oral rehydration solutions each time the person vomits or has an episode of diarrhea.
Some medications, such as diuretics, lithium and antipsychotics, for example, can cause a lot of thirst as a side effect.
What to do: To mitigate the side effect of the medication, the person can drink small amounts of water throughout the day. In some cases, where the person feels a lot of discomfort, you should talk to the doctor, in order to consider an alternative.
Dehydration happens when the water available in the body is insufficient for its proper functioning, generating symptoms such as excessive thirst, dry mouth, intense headache and tiredness.
What to do: To avoid dehydration, you should ingest about 2L of liquids a day, which can be made by drinking water, teas, juices, milk and soup, for example. In addition, the consumption of fruits and vegetables rich in water also contributes to the hydration of the body.
(Reference - https://www.healthline.com/health/thirst-excessive#seeking-help)
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