Dehydration: causes, symptoms, and effective solutions
Written on March 31, 2025, by Pauline de Santarome
The consequences of dehydration
Lack of energy, dry skin, difficulty concentrating... These symptoms could be signs of dehydration! Often underestimated, dehydration affects our daily well-being. Fortunately, there are simple solutions to remedy this, such as staying well hydrated and using hydration tablets to support your intake of essential minerals. We explain everything in this article!
The main causes of dehydration
Insufficient water intake: Not drinking enough water is the most common cause of dehydration. It can be easy to forget to drink during the day, leading to a lack of hydration.
Excessive sweating: Dehydration often occurs after intense physical activity or in hot weather. When you sweat a lot, you lose not only water but also essential electrolytes. This can be even more pronounced in cases of fever.
Underlying health issues: Certain conditions such as diarrhea, vomiting, diabetes, or kidney failure can cause significant water loss. They disrupt the body's water balance and promote dehydration.
Medications that promote water loss: Certain medications, particularly diuretics, can cause excessive water loss. If you are taking this type of medication, it is important to monitor your hydration levels regularly.
These causes of dehydration must be taken into account to avoid health risks.
Symptoms of dehydration on the body
The symptoms of dehydration are often the first signs that quick action is needed. Here are the most common ones:
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Impact on skin and hair: Dehydration causes a decrease in skin elasticity, making it drier and duller. The scalp can also become dry, and hair can become brittle.
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Dark urine: Urine becomes darker, indicating that the body is retaining water to prevent further dehydration.
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Dry mouth and dry mouth: if you don't drink enough, your saliva becomes thick and your mouth becomes uncomfortable.
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Fatigue and headaches: Dehydration can cause generalized fatigue. You feel more tired than usual, and headaches may occur.
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Dizziness and weight loss: Dehydration can affect blood circulation, causing dizziness, especially when standing up quickly. If severe, it can also lead to weight loss due to decreased water reserves.
- Fever: In cases of advanced dehydration, a slight fever may occur.
The physiological and metabolic consequences of dehydration
Severe dehydration does not only affect thirst. It can have profound effects on various body systems, disrupting their normal functioning.
Disruption of the circulatory system and heart
When the body lacks water, blood volume decreases, leading to lower blood pressure. This can strain the heart and force it to work harder to pump blood. If dehydration is severe, it can even cause heart failure. People may experience symptoms such as palpitations or severe fatigue.
Kidney and digestive disorders
In cases of dehydration, their function is reduced, which can lead to kidney failure. This means that the kidneys can no longer properly filter toxins from the body. In addition, dehydration can cause digestive problems, such as constipation, because the body no longer has enough water to move food through the intestines.
Hormonal imbalances and their impact on metabolism
When the body is dehydrated, it can also disrupt hormonal balance, particularly the production of antidiuretic hormones that regulate water retention. This can lead to confusion in the management of body fluids. In addition, dehydration affects metabolism by slowing down essential bodily functions. The body becomes less efficient at converting energy and regulating temperature, which increases feelings of fatigue and can affect physical and mental performance.
The impact of dehydration on the brain and cognitive performance
Dehydration affects not only the body, but also the brain. When you are dehydrated, your concentration and memory take a hit. You find it harder to focus on tasks and retain information.
In addition to cognitive impairment, dehydration has psychological effects. It can increase stress and anxiety, and even affect your mood. You may feel more irritable or have difficulty managing your emotions. Without proper hydration, the brain functions less efficiently, which can impair your mental performance and emotional well-being.
Prevention and solutions: how to avoid dehydration?
To avoid dehydration, it is important to drink water regularly throughout the day, even if you do not feel thirsty.
In addition to water, eat foods that are rich in water. Fruits and vegetables such as cucumbers, zucchini, watermelon, and oranges provide hydration while also supplying essential vitamins.
If you exercise a lot or are exposed to heat, you can also opt for solutions such as hydration tablets. These help replenish lost electrolytes and maintain a good water balance.
Santarome: a natural solution for better hydration
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