Hydration is often cited as one of the essential pillars of a healthy lifestyle, alongside a balanced diet, physical exercise, and quality sleep. However, it remains underestimated in our daily lives. Invisible and easily forgotten, good hydration is crucial for the proper functioning of the body and mind. Many people don't realize they aren't drinking enough until signs of dehydration appear, such as fatigue, headaches, and even a decrease in physical and mental performance. So, how can you ensure optimal hydration and recognize the signs of dehydration? In this article, we guide you to understand the basics of good hydration with tips to achieve it daily.
Understanding Dehydration

Dehydration refers to a lack of water in the body. Since the human body is composed of about 60% water, it needs to be replenished regularly to compensate for daily losses due to urine, perspiration, and respiration, among other things. If there is an insufficient water intake, a water deficit in the body occurs, a situation in which more water is excreted than absorbed, leading to dehydration.
The causes of dehydration can vary. Most often, it occurs after a significant and sudden loss of water volume in the body, such as during episodes of vomiting or diarrhea, which can be caused by certain illnesses like gastroenteritis. It can also manifest after particularly heavy sweating. Finally, more obviously, dehydration can set in gradually as the body's water deficit accumulates due to insufficient hydration.
Identifying the Symptoms of Dehydration
The symptoms of dehydration can be quite different depending on the age of the person concerned. The most at-risk individuals are elderly people and babies.
For healthy adults, the most common symptoms are initially thirst, followed by dry lips, darker, less abundant urine, and fatigue. In cases of severe dehydration, new symptoms can be added, such as headaches, dull, sunken eyes, and dizziness.
In elderly individuals, the symptoms are broadly similar, with the addition of low blood pressure and confusion. It's interesting to note that seniors are generally less sensitive to thirst because the mechanism regulating it is less efficient.
Finally, dehydrated babies may present a sunken fontanelle, which is the soft spot on the top of their skull, as well as tearless crying and dry diapers.
Rehydration for Specific Groups
It is important to know that dehydration can have potentially serious consequences, especially for at-risk individuals, particularly children and seniors. Therefore, it is important to adopt good habits to prevent it: drink regularly during and between meals, eat healthily, as a significant portion of the water absorbed by the body comes from food, and avoid excessive alcohol and caffeine consumption.
Rehydration in Children
A baby's body is composed of up to 75% water, so it is essential that they are regularly hydrated to compensate for natural losses due to perspiration, urine, and feces. At the infant stage, breast milk is sufficient to cover their needs. Once their diet is diversified, they can be given 7 to 10 small glasses of water throughout the day. This method of hydration with frequent small volumes also helps prevent vomiting.
Rehydration for At-Risk Individuals

The best way to rehydrate at-risk individuals, particularly seniors and those with chronic illnesses, is to have them drink water rich in minerals (sodium, potassium, calcium, magnesium). In cases of severe dehydration, especially following the aforementioned symptoms, it is important to contact emergency services quickly. Doctors can then perform rehydration via IV drip with a solution that is more effective than water alone.
Particular vigilance is required during periods of intense heat, as dehydration can easily set in among the elderly and children, who have more difficulty staying adequately hydrated.
Rehydration Solutions
Hydration, a fundamental pillar of health, is often overlooked despite its importance. Insufficient water intake can lead to serious consequences, especially for the most vulnerable groups (children, babies, and the elderly).
An oral rehydration solution (ORS) is a drink formulated to restore the balance of electrolytes lost during dehydration, thereby promoting body rehydration. In addition to water, it contains a precise mixture of sodium and glucose to facilitate water absorption by the body and is enriched with essential minerals such as sodium, potassium, magnesium, and calcium.
Oral rehydration solutions (ORS) are often used to treat dehydration. Due to the simplicity of their composition, it is possible to prepare "homemade" ones if a ready-to-use water-soluble solution is not available. To do this, simply add 6 teaspoons of sugar and 1 teaspoon of salt to one liter of water, then mix until dissolved. The solution can be stored for 12 hours at room temperature and 24 hours in the refrigerator.

To support optimal hydration, hydration solutions like Hydratis tablets are particularly effective. Hydratis effervescent tablets contain the appropriate dosage of glucose (sugar) and sodium (salt) to optimize hydration, and they also enrich water with electrolytes, which are essential minerals such as magnesium, potassium, chloride, zinc, and manganese. Moreover, these effervescent tablets are available in several flavors like peach, forest fruits, lemon, pineapple, watermelon, coconut, etc., so that hydration is never a chore!
Adopt these simple solutions to preserve your health, prevent dehydration symptoms, and maintain your vitality daily!
The various symptoms of dehydration remind us how essential water is for the proper functioning of our body and for health. Staying well hydrated throughout the day is therefore not just a health tip but a necessity to preserve our vitality and well-being. Adopting regular hydration habits and looking out for our loved ones, especially children and the elderly, is crucial as they are the most vulnerable to the effects of dehydration. During periods favoring dehydration, hydration solutions like Hydratis are valuable allies for effectively restoring the body's fluid and electrolyte balance. Adopt simple and regular habits for optimal hydration: it's attention your body will repay a hundredfold! Choose the right habits and plan your drink to maintain good hydration :)